Summer Holiday Assignment 2017-18()nirmalakorba.org/images/SUMMER HOLIDAY ASSIGNMENT... · English...

NIRMALA ENG. HR. SEC. SCHOOL (CBSE) RISDI, KORBA, C.G.

SUMMER HOLIDAY ASSIGNMENT 2017-18

CLASS 1 TO 5

CLASS - 1 SUMMAR HOLIDAY HOME WORK NAME OF BOOK : HOLIDAY WORK SHEET

English - worksheet -1 ,2,3,4,5,6. Page no.4 to 9

English handwriting - page no. 10 to 16.

Hindi - worksheet - 1 to 8

Hindi sulekh - page no. 31 to 37

Maths - worksheet no.1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18 and 37.

E.V.S - WORKSHEET NO. 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, page no. 4 to 18.

Computer - worksheet -1

CLASS - 2 SUMMAR HOLIDAY HOME WORK NAME OF BOOK : HOLIDAYS HOME WORK

English - worksheet no. 1,2,3,4,5,6,7,8,9,11,18,19,21.

English handwriting - page no.4 to 18

Hindi - worksheet no.1,2,3,4,5,6,7,8.

Hindi sulekh - page no.- 31 to 37

Maths - worksheet no. 1,2,3,4,5,6,8,13,14,2,21,22,24,29,34.

E.V.S - Worksheet no. 1,2,3,4,5,6,7,8,9,10,11.

Computer - Worksheet no . 1, 2 , 3, 4

CLASS – 3 SUMMAR HOLIDAY HOMEWORK NAME OF BOOK : HOLIDAY WORKSHEETS

English - Worksheets - 1,2,4,5,6,11,12,21

Hindi - Worksheets - 1 to 8 , sulekh pg. 31 – 36

E.V.S - Worksheets - 1,2,3,4,5,9,10

Maths - Worksheets - 1 to 8

Com. Science - Worksheets - 1,2,3

CLASS – 4 SUMMAR HOLIDAY HOME WORK NAME OF BOOK : HOLIDAY ACTIVITY

English - 1 ,3,4,5,6,7,11,14,15,16,20,23

Hindi - Work sheet No. 1 to 8

Sukekh - Pg No. 31 to 35

Science - Work sheet No 1 to 7, Worksheet Page No. 4 to 10

Maths - Worksheet No 1 to 6

Computer - Worksheet No 1, 2, 3

S.St - On a map of Asia mark and label India and its neighboring countries.

On a map of India mark and label the various physical divisions.

CLASS - 5 SUMMAR HOLIDAY HOMEWORK NAME OF BOOK : HOLIDAY WORK SHEETS

English - Worksheet : 1,2,3,4,5,6,7,10,12,14,15 and 16

English Handwriting - Page No . 4 to 19

Hindi - Worksheet - 1 to 8

Maths - Worksheet - 1 to 6

Science - Worksheet - 1 to 7

Computer - Worksheet - 1, 2, 3

S.St. - 1) Make a Model of the Earth

2) Draw a picture of globe with five important parallel lines in project file.

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CLASS 6

SUBJECT: ENGLISH

Q. 1 Grammar Book -> Page No. 28 -> Exercise A, B, C

Q. 2 Write a paragraph on the topic “Saving Trees “.

Note : - Do all in Project file

SUBJECT: MATHS (CLASS: 6A1 AND 6A2)

Q.1 Insert commas suitably and write the number names according to the Indian system and

International System of numeration

a) 507012084 b) 68045765 c) 50505005

Q.2 Place commas correctly and write the numerals and write in numeral in expanded form

a) Nine lakh twenty thousand eighty – seven.

b) Four million seven hundred fifty- five thousand two hundred forty four

c) Twenty five million twenty five thousand twenty five

Q.3 Find the difference in the place value of 6 in 7, 34, 64, 263

Q.4 Arrange the following numbers in Ascending and descending order

a) 100101 , 111001, 110101 , 101011

b) 67954400 , 67954302 , 6796550 , 67955000, 6795537

Q.5 A man had Rs. 55638579. He gave Rs. 28936555 to his wife and Rs. 11111111 to his daughter

and the rest to his son . How much money was received by the son ?

Q.6 Round off the number to the nearest ten , nearest hundred, and nearest thousand.

a) 54169 b) 81626 c) 74493

Q.7 Estimate each sum to the nearest hundred : a) 3333 + 5298

Q.8 Estimate the product to the nearest hundred: - a) 658 x 359 b) 609 x 179

Q.9 Express each as a Roman numeral : - a) 135 b) 174 c) 346 d) 72

Q.10 Write as a Hindu- Arabic numeral : a) XLIX b) LXXIII c) CLXV d) XCII

Q.11 Write the successor and the predecessor of number

a) 99999 b) 10809 c) 90999

Q.12 Fill in the blanks:

a) The smallest 5 – digit number formed by using the digit 2, 9, 3, 6, 0 is ________

b) 5239 + 632 = 632 + ______

Q.13 A bus moves at a uniform speed of 78 km/hr. How much distance will it cover in 48 hours?

SUBJECT : MATHS (CLASS : 6A3)

Q.1 Write a definition with diagrams

a) Point b) Line segment c) Ray d) Line e) Angle

Q.2 Fill in the blanks :

a) A smooth flat surface which extends indefinitely in all directions is called a ______

b) Three or more points that lie on the same line are called ____ points.

c) A quadrilateral has _____ sides , _____ vertices, ______ angles and ______ diagonals.

d) A diagonals of a quadrilateral is a line- segment that joins two _____ vertices of a quadrilateral.

Q.3 Classify the following curves as open or closed .

A

Q.4 In figure 2, name the following : Q

i) Three radii ii) Three chords iii) A diameter C

iv) Two minor arcs v) Two sector B

D

P

Q.5 In the circle figure name the points which are : .E

i) In its interior I.

ii) On its exterior .A .F B.

iii) On the circle G. .C

.D .J

.H

SUBJECT : SCIENCE (CLASS : 6A1)

Q.1 Prepare a chart of some nutrients like vitamins, minerals and proteins with their functions,

diseases which can occur due to deficiency of those nutrients and their sources.

Q.2 Define sericulture . Mention at least five types of silk found in India?

Q.3 What are nutrients? Write some important functions of carbohydrates and fats with their sources.

Q.4 Observe and name some insects/animals found in your house. Write down what they eat and into

What category they can be placed, based on their food habits. Are they of any use to you?

SUBJECT : SCIENCE (CLASS : 6A2 AND 6A3)

Q.1 Draw a map of INDIA on chart and labeled all states and write their foods

Q.2 Memorize Table 2.2 and Table 2.3

Q.3 Prepare for food show. ( JUNE )

SUBJECT : SOCIAL SCIENCE

Q.1 Find out the names of the members who wrote the constitution of India and paste their

Pictures in your project file.

Q.2 Make a model of Solar system

Q.3 Map Practice Book - Complete page no. 4 – 20

Q.4 Learn Question answer.

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CLASS 7

SUBJECT : ENGLISH

1) Grammar chest :- Page no. 26 Exercise : G

Grammar chest :- Page no. 27 Exercise : L

Grammar chest :- Page no. 29 Exercise : M

2) Write essay on the following topics :

i. My aim in life ii. A trip to remember

SUBJECT : MATHS (CLASS : 7A1 AND 7A2)

Q.1 Fill in the blanks :

i) Sign of the product of two integers that are opposite in sign is ________

ii) Additive inverse of an integer a is _______

iii) -28 + ____ = 0

iv) 9 + (-12) + ______ = 9 + ( -12) + ( -7)

v) -28 + ( -1) = ______

Q.2 Write the properties of Addition & Subtraction of integers, with example.

Q.3 Verify ( a + b) + c = a + ( b + c) for the following values of a and b.

a) a = 32 , b = 0 , c = -44 b) a = 42 , b = -37 , c = -81

Q.4 Verify the following :- 8 x [ 9 x ( -5) ] = ( -5) x ( 8 x 9)

Q.5 Evaluate the following : 36 - [ 5 + 127 - ( 16 – 9) ]

Q.6 What are the order of operations represented by “ B O D M A S “ ?


Q.1 Find the sum of the following integers :

i) 17 and -8 ii) -36 and 19

Q.2 Evaluate the following :-

i) [ 75 + ( -60 ) ] + [ ( -25) + ( -11) ] ii) [ 1136 + ( -1272) ] - [ ( -1250) + 1138 ]

Q.3 The difference of an integer a and -13 is -4 . find the value of a .

Q.4 A Submarine was 5827 m below sea level. If it ascends 2200 m , what is its new position ?

Q.5 Define closure property , commutative property and Associative property.

Q.6 Verify the following : i) 8 x [ 9 x ( -5) ] = ( -5) x ( 8 x 9 )

ii) ( -35 ) x [ ( -9) + (11) ] = ( -35) x ( -9) + ( -35) x 11

Q.7 The temperature of a hot metallic rod is 278° C If it is made to cool off at the rate of 5°C every minute

Then what will be its temperature after 15 minutes ?

Q.8 A grain wholesaler earns a profit of Rs.12 per bag of wheat sold and a loss of Rs. 8 per bag of rise sold.

SUBJECT : SCIENCE (CLASS : 7A1 AND 7A3)

Q.1 Memorize Periodic table ( 1 to 30 elements )

Q.2 Draw food web chart briefly on chart paper.

Q.3 Memorize chapter 1 and 2.

Q.4 Find out internal questions and write answer in your own words.

Q.5 Solve work sheet.

a. How plants prepare their own food.

b. Why are body cannot makes food from carbon-dioxide water and mineral like plants do.

c. Prove that leaves are the food factories of plants.

d. How water and minerals absorbed by roots reach the leaves.

e. Leaf synthesis food but other part of the plant can not.

f. What is plant pigment write its types and color.

g. If the picture plant is green and carries out photosynthesis then why does it feed on insects.

h. Visit a green house or Nursery and write observation . How plants grow in green house.

SUBJECT : SCIENCE (CLASS: 7A2)

Q.1 Draw a structure of atom and human digestive system and label its parts?

Q.2 Draw the chart given in page – 32 in science book and learn it very well?

Q.3 Write down all the activities which confirms the presence of carbon – dioxide starch, chlorophyll,

Sunlight in plants?

Q.4 Differentiate between Autotrophic &heterotrophic ?( 6 points)

Q.5 Write the names of the parts which involve in the process of digestion of food from intake till exit.

And also write some functions of each?


Q.1 Map Practice Book – Complete Page.no 4 – 20 .

Q.2 Find out information about our neighboring countries and other important countries of the world.

List these countries under the various forms of government.

Q.3 Imagine an ideal environment where would you like to line . Draw the picture of that environment

and show it in the class.

Q.4 Learn Question answer of: [ History : L – 1 , Geography : L – 1 Civics : L – 1 ]


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CLASS 8

SUBJECT : ENGLISH

Q.1 Find information about the game Quidditch.

Q.2 Write a paragraph about the historical about the historical importance of palanquin.

Q.3 Grammar :- Complete page no. 11 to 24.

Q.4 Learn question and answers of English Reader

SUBJECT : MATHS (CLASS : 8A2 AND 8A3)

Q.1 Simplify the following :

a) -5 + 7 b) 2 - 3 c) -5 ¼ x 3 ⅓

12 8 3 5

d) ( 5/2 x -16/5 ) - ( -35/3 x 1/7 x 21) e) -15/14 ÷ -5/21 f) 11/7 x ( 6/7 + -3/5 )

Q.2 Verify the following :- a) -5/7 + -3/8 = -3/8 + -5/7 b) ( ¾ x -11/5 ) x 2/7 = ¾ x ( -11/5 x 2/7 )

Q.3 Evaluate : a) (-2) - (-4) - (-3)

5 7 10

Q.4 What number should be added to -8 / 16 to get -5 / 48 ?

Q.5 Divide the sum of -1/ 12 and -4/ 9 by their difference .

Q.6 The product of two numbers is -5/ 12 .if one of the number is -35/ 18 , find the other number.

Q.7 Find five rational numbers between -3/ 4 and 7/ 5

Q.8 The cost of 2½ kg of sugar is Rs. 58 ¾ what is the cost of 1 kg of sugar.


Q.1 Verify the following :- a) -17 + 3 = 3 + -17 b) -5 + -3 = -3 + -5

11 7 7 11 7 8 8 7

Q.2 Tanay bought a pen for Rs13½ , a book for Rs 17 2/3 and an ice – cream for Rs 15¼.

How much money did he spend in all ?

Q.3 Solve these : - i) What number should be added to -9/10 to get -7/ 48 ?

ii) What Number should be subtracted from -¾ to get 5/6 ?

Q.4 Simplify the following :- i) ( 5/2 x -16/5 ) - ( -35/3 x 1/7 ) x 21

ii) ( 3/5 x -10/9 ) + ( -4/5 x 1/-8 ) - ( 2/5 x -15/16 )

Q.5 Find the multiplicative inverse of each of the following :- i) -15/ 19 ii) -5/ 21

Q.6 How much distance will a train cover in 3⅓ hr. If it maintains a constant speed of 80¼ km/ hr ?

Q.7 A man had Rs 90 with him. He bought 2½ dozen eggs at Rs 22¾ per dozen.

Q.8 Find the cost of 12¼ m of cloth If 1 m of cloth coast of Rs 17⅓.

SUBJECT : SCIENCE

Q.1 Where and how we use these agricultural tools?

Q.2 How can we prove that , we need food in a very large quantity in our country ?

Q.3 How food has to be produced on large scale?

Q.4 Why paddy crops not be grown in winter seasons ?

Q.5 Collect different types of seeds & put them in small bag attach this bag in a H.W copy and lable them.

Q.6 Collect new agricultural tool or machine pictures and paste in your science copy with their

Names and user.

INVESTIGATORY PROJECT

A. Visit a farm, garden or nursery nearby gather information about.

1. Importance of seed selection

2. method of irrigation

3. Affect of extreme cold and hot in the plants.

4. Affect of continuous rain on the plant

5. Fertilizer and manure.

WORK – SHEET ( 2)

1. Where and how we use agricultural tool?

2. Why crop production is necessary for us?

3. What is yeast? How will you prepare bear using yeast?


History :

Q.1 Different topics were given to students from chapter – 2. “ The rise and Growth of the Company Power “

Geography :

Q. 1 Draw the following maps

i) Page no. 271 , World population ii) Page no. 271 , World : Land Use

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CLASS: 9TH

SUBJECT: PHYSICS

1. Ritu takes 20 minutes to cover a distance of 3.2 km on a bicycle. Calculate her velocity in unit of

kilometer/min and meter/min.

2. A car travel 4 km in 3 minutes. Find the speed of car in cm/s.

3. If a cheetah spots his prey at a distance of 100 m, what is the minimum time it will take to get its prey if

the average velocity attained by it is 90 km/hr?

4. Convert 80 km/hr in m/sec

5. Convert 10 m/sec into km/hr

6. Define distance and it is a scalar quantity or not. Find the S.I unit of distance.

7. Define displacement and The S.I unit of displacement. Is displacement a scalar or vector quantity, why?

8. Define speed? What is t he S.I unit of speed. Is speed is a vector quantity, why?

9. What does speedometer of a vehicle measure.

10. A car travels 40 km at a uniform speed of 40 km/hr, what should be its speed for the next 80 km. if the

average speeds for the entire journey.

11. A car travels 40 km at a uniform speed of 80 km/hr. What should be its speed for the next 80 km. if the

average speed for the entire journey is 120 km ph?

12. Starting from a stationary position, Rahul paddhes his bicycle to attain a velocity of 6 m/s in 30 s. Then

he applies bakes such that velocity of the bicycle comes down to 4 m/s in the next 5 seconds. Calculate

the acceleration of bicycle in both the cases.

13. Distinguish between speed and velocity.

14. Under what condition is the magnitude of average velocity of an object is equal to its average speed?

15. What does the speedometer and odometer of an automobile measure?

16. What does the path of an object look like when it is in uniform motion?

17. During an experiment, a signed from a spaceship reached the ground station in five minutes. What was

the distance of the spaceship from the ground station? The signal travels at the speed of light that is 3

x 108 m/s.

18. Experiment No: 1, 2, 3 from the lab manuals.

SUBJECT: BIOLOGY

1. Complete the lab manual and practical

Write in your practical copy

Experiment No: 1

a. To test the presence of starch in the given food sample.

2. To prepare stained temporary mount of onion peel.

3. To identify parenchyma and sclerenchyma tissues in plants.

Striped muscle fibers and nerve cell in animals.

SUBJECT: CHEMISTRY

1. Experiment No: 1, 2, and 3 from the lab manuals.

SUBJECT: SST

1. You will prepare the drawing of Lousis XVI and write the important point’s do it project file?

2. You will prepare the map of India and Label all the state and color it?

3. Prepare the map of Chhattisgarh and mention all the cities?

4. By heart the chapter there will be seminar in class?

SUBJECT: ENGLISH

1. Five interviews of grandmother. (5 important questions related to their life) from each grandmother.

2. Summary of the poem “The Brook” after 3 paragraphs with pictures.


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SUBJECT: COMPUTER (FIT)

1. Describe the functioning of Input Unit and output Unit.

2. How are computers used in the field of film editing and multimedia?

3. Explain the function of Central Processing Unit.

4. Computer is a versatile machine. Explain.

5. How can computers be used in education?

6. What is the function of Control Unit?

7. Explain generations of computer.

8. Explain type’s of computer.

9. How computers can be applied in communications.

10. Write the major components of central processing unit and its uses.

11. Write the difference between RAM and ROM.

12. What the advantage of using a plotter to produce a printout?

13. Give one reason why a digital camera is suitable for obtaining pictures for a

multimedia presentation.

14. Your school is developing a piece of multimedia language software for used

by the students of the class Give three reasons why the school decides to

issue the software on CD-ROM and not on floppy discs.

15. Visit your school's computer lab and write types of computer being used in the lab.

16. Assume that your friend wants to buy a computer system for studying, which computer you will

suggest to buy?

17. Compare out desktop, laptop, PDA.

18. Visit your computer lab and list down various software’s used in lab.

19.

SUBJECT: MATHS

1. History of Archimedes or Aryabhatta

OBSERVATION SKILL

S.NO. STATEMENT TRUE/FALSE

1 Every integer is a natural number.

2 Every whole number is not natural number.

3 Every rational number is a real number.

4 Every natural number is an integer.

5 Every integer is not a rational number.

6 Every natural is a whole number.

7 Every integer is a natural number.

• Date of Birth

• Birth Place

• Country

• About Family

• About Education

• Achievements

• Famous for

• Remarks

Date Teacher’s Signature

Crossword Puzzle

Across

1. Rational numbers and irrational number form _____ numbers.

2. A natural number which has 1 and the number itself only as factors is called a _____ numbers.

3. The set of negative natural numbers sis a subset of ______.

4. 0, 1, 2, 3, _____ from the set of ____ numbers.

Down

5. A number of the form p/q where (p, q)= 1,

p, q are integers and q ≠ 0 is called a _____ numbers.



CLASS: 10TH

SUBJECT: PHYSICS

Q. A Very short answer type questions

1. State the formula correlating the electric current flowing in a conductor and the applied voltage.

2. Name the S.I. unit of resistance & specific resistance.

3. Name the metal which is the best conductor of electricity.

4. On increasing the temperature of a conductor what would be the effect on its resistance.

5. Which has high resistance, a thick wire or a thin wire?

6. Which quantity is equal to reciprocal of slope V – I curve for conductors?

7. Why are the coils of electric iron and electric toasters made of an alloy rather than a pure metal?

8. On what factor does the resistance of a conductor depend?

9. On what factor does the resistivity of a substance depend?

10. Two wires of same area of cross- section are given, one is smaller and other is longer. Which one has

greater resistance?

Q. B Short answer type questions.

1. How is the current affected if the potential difference across the end of a conductor is

i. Halved ii. Doubled.

2. Define 1 Ohm and state the limitations of Ohm’s laws

3. On the basis of electrical resistance, how you can distinguish between a conductor and insulator.

4. Which of the following has higher resistivity constantan or copper?

5. What are super- conductors?

6. In parallel combination and series combination of resistor, which quantity remains same for each

resistor?

7. If 4 resistors of 4 Ohm are joined in series then in parallel, than what will be their equivalent resistance.

8. Observe the given circuit diagram carefully and answer the questions given below.

i. What are the currents drawn by leased and highest of three resistors?

ii. What is current drawn by the 12 Ω resistor?

iii. What would be the reading of ammeter?

9. Prove that

= n

2 for an equal resistance connected on series and parallel?

Q. C Very Short Answers Questions:-

1. Name a safety device used in electric circuit?

2. Name the substance used to make the filament of an electric bulb?

3. Name three different effects of electric current.

4. What do you mean when we say that a bulb is 100 watt?

Q. D Long Answer Questions.

1. On the basis of Joule’s law of heat production obtain an expression for heat produced in a Conductor

during the flow of current through it?

2. What is an electric power? Obtain an expression for it. Write its S.I unit and define one watt?

3. (a) The values of “V “versus I flowing in the resistor are given below.

Potential difference V ( In volt ) 2 4 6 8 10

Current I ( In ampere ) 0.5 1.0 1.5 2.0 2.5

Plot a graph between V and I and calculate the resistance of the resistor.

i. Name the law which is illustrated by the above V- I graph.

ii. State the factors affecting the resistance of a conductor and how?

iii. What are the limitations of ohm’s law?

Q. E Experiment No: 1, 2 and 3 from the lab manual.

SUBJECT: BIO

1. Complete the lab manuals and practical (Write in your copy)

a. To prepare a temporary mount of a leaf peel to show its stomata.

b. To show that light is necessary for photosynthesis.

c. To show CO2 is produced during respiration.

SUBJECT: CHEMISTRY

1. Experiment NO: 1, 2, 3 from the lab manual.

SUBJECT: SST

1. Prepare the brief description of industries of India along with picture.

2. Novels

Collect picture of all the famous writer / novelist of India and from your book and give a short

biography of them along with their famous books.

SUBJECT: ENGLISH

1. Complete unit- 1 of MCB.

2. Summarize the story “two gentlemen of Verona” along with pictures.

3. Complete unit- 1 of work book.

4. Write down the summary of the three chapters of the novel.

(The story of my life)


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SUBJECT: MATHS

1. Define polynomials, with examples.

2. Verify that 0 and -2 is zeroes of polynomial 4u2 +8u

3. Find zeroes and verify the relationship between the zeroes and coefficient of x2 – 2x + 8

4. Find all the zeroes of 2x4 - 3x

3 - 3x

2 + 6x – 2, if you known that two of its zeroes are √2 and - √2

5. Find a quadratic polynomial each with given numbers as sum and product of zeroes respectively

i. √2, √5 ii.

, -

√

6. Divide the polynomial p(x) = x4 – 5x + 6 by another polynomial g(x) = 2 – x

2

7. Explain division algorithm of polynomial.

8. Divide 3x2 – x3 – 3x + 5 by x -1 – x

2

9. If polynomial is p(x) = x2 – px + q, then find value of

i. α2 – β

2 ii. α

3 – β

3 iii.

+

iv.

+

v.

+

SUBJECT: COMPUTER (FIT)

1. Describe the functioning of internet.

2. Write some uses of internet.

3. How Protocol affect internet.

4. Write difference between

i. www and other servers on internet.

ii. Web site and web portal

iii. Internet and Intranet.

iv. Web browser and web server

v. Website and web page.

5. Describe the two addressing mechanisms used for website on the internet.

6. What are requirements needed to make internet connection operational your PC.

7. Define modem and explain its type.

8. Write advantages of web.

9. Explain briefly URL.

10. Name any two extensions used with web address.

11. Explain how internet originated.

12. Explain the working on modem.

13. Explain Client-server model.

14. Write a short note on:

i. Blog

ii. Web page

iii. News group.

iv. hypertext

v. URL

15. Write the web extensions of some website of some organization.

16. Find information about website internet.

17. Identify domain name of some web site as either commercial organization.



CLASS: 12TH

SUBJECT: PHYSICS

Conceptual Questions

ELECTROSTATIC CHARGE (COULOMB’S LAW)

1. A charge Q is kept in the inner cavity and a charge 2Q is given to the inner shell as shown in figure1.

Find the charges at the surfaces A, B and C.

2. A body A repels another body B, A attracts body C, C repels body D. it is given that body D is positively

charged. What is the charge on body B.?

3. Is coulomb's law in electrostatics valid in all situations? What are valid?

4. Is the force acting between two point charges q1 and q2 kept at some distance in air, attractive or

repulsive when:

i. q1 q2 >0 ii. q1q2 <0

5. Force of attraction between the two points charges placed at a s distance d is F. What distance apart

should they be kept in the same medium so that the force between them so that force between them

is F/3?

6. Two point charges of + 2µC and +6 µC repel each other with a force of 12 N. If each is given an

additional charge -4µc, what will be the new force?

7. An attractive force of 5N is acting between two charges of +2µC and - 2µC placed at some distance. If

the charges are mutually touched and placed again at the same distance, what will be the new force,

between them?

ELECTRIC FIELDS

1. What is the symmetry of the electric field due to an electric dipole?

2. What is electric dipole is held at an angle in a uniform electric field is what is the value of net force and

torque t on the dipole?

3. What is the value of potential energy of an electric dipole when held at an angle ϴ in a Uniform electric

field is zero When ϴ.

4. When does a charged circular loop behave as a point charge?

5. Two protons A and B are placed in between the plates of a parallel plate capacitor charged to a

potential difference V. The forces on the two protons are identical. Is this statement are true?

6. Four charges of same magnitude and same sign are placed at the corners of a square, of each side 0.1

m. What is the electric field intensity at the centre of the square?

7. Force experienced by an electron in an electric field E is F Newton. What will be the force experienced

by a proton in the same field? Take mass of proton 1836 times the mass of an electron?

ELECTRIC DIPOLE

1. What is an ideal dipole?

2. What happens when an electric dipole is held in a non uniform electric field?

3. At which points, dipole field intensity is parallel and anti parallel to the line joining the charges.

4. How much is the dipole moment of non-polar molecule?

5. What do (q1 + q2) signify?

6. Why do we obtain a neutral point in the space between two like charge?

7. An electric dipole is placed at rest in a uniform electric field and released .How will it move.

ELECTRIC POTENTAIL, POTENTIAL DIFFRENCE RELATED TO ELCTRIC FIELD

1. What are the points at which electric potential of dipole has

i. Maximum value

ii. Minimum value

2. A hollow metal sphere of radius 5 cm is charged such that potential on its surface is 10 V. What is the

potential at the centre of the sphere?

3. Will there be any effect on potential at a point if the medium around this point is charged.

4. Can two equipotential surfaces intersect each other? Give reasons.

5. Draw an equipotential surface for a uniform electric field, an electric dipole, and two positive charges?

ELECTROSTATIC POTENTAIL ENERGY

1. What work must be done in carrying an α-particle across a potential difference of 1 volt.

2. What is the work done in moving a test charge q through a distance of 1 cm along the equatorial axis of

an electric dipole?

3. Define the term potential energy of charge q at a distance in an external electric field?

4. No work is done in moving a test charge over an equipotentail surface. Why?

5. What is potential energy of two equal negative point charges 2µC each held 1 m apart in air?

ELECTRIC FLUX AND GAUSS THEOREM

1. A charge q is placed at the centre of a cube of side l what is the electric flux through two opposite faces

of the cube?

2. Two concentric spherical shells of radii R and 2R are given charges Q1 and Q2 Respectively. The surface

charge densities of the outer surfaces are equal. Determine the ratio Q1 : Q2

3. Two plane sheets of charge densities +σ and- σ are kept in air as shown in figure 1.2 what are the

electric field intensities at points A and B?

NOTE: SOLVED NCERT EXERCISES

PAGE NO: - 46, 47 and 48 -----> Questions 1.1 to 1.24

PAGE NO: - 48 ----> Questions no. 1.26

PAGE NO: - 87, 88 ----> Questions 2.1 to 2.11, 2.12, 2.13, 2.14, 2.26, 2.27, 2.29 and 2.31

Figure 1: -

SUBJECT: BIO

1. Make a project report on:- investigatory

a. Thyroid in Woman.

b. Study drug resistance in bacteria using antibiotics.

c. To gain knowledge on clinical features diagrams, treatment and risk factors of

i. Osteoporosis ii. Ectopic Pregnancy

iii. Sickle Cell Anemia iv. Malaria

SUBJECT: COMPUTER SCIENCE

1. Program to read array element and display in reverse order.

2. Program to read array element and display in biggest number.

3. Program to read array elements and Search an any particular elements from the array list.

4. Program to read array elements and display in ascending order.

5. Program to find sum of all elements of Matrix 3x3.

6. Program to find the transpose of given matrix 3x3.

7. Program to find the sum of two matrixes 3x3.

8. Program to find the multiplication of two matrixes 3x3.

9. Program to display name and age of person by using class.

10. Program to display item no. and cost of object by using class.

SUBJECT: ENGLISH

1. Water is very precious some scientists even go to the extent of saying that the third world was may be

fought on the issue of water. Keeping in view the need for saving each drop of water, write an article in

150-200 words. You are Natasha/ Rohan, a resident of Kanpur.

2. Write a notice for your school bulletin board your notice could be an announcement of a forthcoming

event, or a requirement to be fulfilled, or a rule to be followed.

3. Write a paragraph of about 100 words arguing for or against having to study three languages at school.

4. Have you ever changed your opinion about someone or something that you had earlier liked or

disliked? Narrate what led you to change your mind.

5. Read the Novel and also write the summary of the story.

SUBJECT: ACCOUNTANCY

Chapter – 1

1. Solve the numerical regarding the following topics (2 questions from each topic)

a. Interest on capital

b. Interest on loan

c. Commission before charging and after charging

d. Profit/Loss appropriation A/c

e. Partners capital A/c (Fluctuating)

f. Partners Current A/c (Fixed)

g. Guarantee of Profits

h. Past Adjustments

Chapter – 2

2. Calculation of goodwill (2 question from each topic)

a. By average profit method

b. By weighted average profit

c. By super profit method

d. By capitalization of average profit

e. By capitalization of super profit

Chapter – 3

3. Change in profit sharing ratios (2 question from each topic)

a. Sacrificing ratios

b. Journal entries regarding goodwill, reserves and workmen compensation reserves.

Chapter – 4

4. Admission of partners (5 question from each topics)

a. Revaluation A/c

b. Partners Capital A/c

c. Balance Sheet

SUBJECT: BUSINESS STUDIES

(20 question from each Chapter)

Chapter -1: Nature and significance of management

Chapter -2: Principles of management

Chapter -3: Business Environment

Chapter- 4: Planning

Short Answer: 2 question from each chapter

Long Answer: 2 question from each chapter

Case Studies: 1 question from each chapter

SUBJECT: CHEMISTRY

SOLID STATE

1. Define

i. Unit Cell ii. Co-ordination number

2. Distinguish between tetrahedral void and octahedral void.

3. Give three examples of Ionic crystals which show Frenkel Defect.

4. What type of stoichiometric defect is shown by AgCl crystal?

5. Classify each of the following as being either a n-type or a p-type semiconductor:-

i. Ge doped with In ii. B doped with Si

6. Why LiCl acquires pink color when heated in Li vapors?

7. Name and write a compound which shows both Schottky and Frenkel defect.

8. Write three differences between crystalline solids and amorphous solids.

9. Define space lattice.

10. Explain Ionic Radius Ratio and write the important significances of it.

11. For a face-centred cubic arrangement, if ‘a’ is the edge of unit cell, then find the formula for the radius

of the atom (r).

12. A crystal system having the dimensions- a = b ≠ c and α = β = Ƴ => 90°, then ------------->

Write the name of the crystal system (i.e., Unit cell).

13. Find out the percentage of empty space in bcc arrangement.

14. Why does Frenkel defect not change the density of an AgCl crystal?

15. What type of semiconductor is obtained when silicon is doped with arsenic?

16. Write main defference between primitive and non- primitive unit cells. Also write one example of each.

17. Which of the following Lattices has the highest packing efficiency:-

i. scc ii. bcc iii. hcp

18. What type of stoichiometric defect is shown by:-

i. ZnS ii. AgBr

19. Define crystal lattice and unit cell.

20. How many lattice points (total no. of praticles) are there in one unit cell of each of the following:-

i. fcc ii. bcc

21. Write two differences between metallic and ionic crystals. Also write one example of each.

22. Gold (atomic radius = 0.144 nm) crystallizes in a face- cantered unit cell. What is the length of the side

of fcc unit cell?

23. Why does common salt (table salt) (NaCl) sometimes appear yellow in color?

24. What is the co-ordination number of each type of ions in a CsCl crystal structure?

25. What are point-defects? Which point defect in a crystal of solid decreases the density of solid?

26. Crystalline solids are anisotropic in nature. What does this statement mean?

27. What is meant by doping in a semiconductor?

28. Zinc oxide (ZnO) turns yellow on heating- Why?

29. What are the important consequences of schottky defect and frenkel defects in crystals.

30. Why frenkel defect is not found in pure alkali metals halides?

31. What do you understand by non-stoichiometric compounds? Give examples.

32. Draw the structures of following:-

i. scc ii. bcc iii. fcc iv. One unit cell of NaCl .

33. Write two main differences between n-type and p-type semiconductors.

34. Define the following terms:-

j. Packing efficiency ii. Close packing.

SOLUTION

1. Write definitions of following terms:-

i. Normality ii. Molality iii. Molarity

(Giving Formula for each)

2. The vapour pressure of pure solvent is always greater than vapour pressure of solution – give reason.

3. Define following terms:-

ii. Mole fraction of a component

iii. Molal elevation boiling point constant.

iv. Molal depression freezing point constant.

4. Write difference between osmosis and diffusion.

5. What is Binary solution?

6. What is the main concept of the Raoult’s Law? Derive an expression for it, if the binary solution has

non-volatile solute.

7. Prove that relative lowering of vapour pressure is a colligative property of solution.

8. Explain that elevation in boiling point is a colligative property of solution.

9. What is Van’t Hoff equation? How can you determine the molecular weight of a non-volatile solute

with the help of Osmotic pressure?

10. Define lowering of vapour pressure. Determine the molecular weight of a non-volatile solute with the

help of relative lowering of vapour pressure, in case of:-

i. If solution in Dilute ii. If Solution is not Dilute

11. Write four differences between Ideal solution and non-ideal solution. Write two examples of each.

12. Write four differences between positive deviation and negative deviation showing non-ideal solutions.

Also write two examples of each.

13. What do you understand by Azeotropic mixtures? Explain the two types of it with their properties and

examples.

14. An aqueous solution of 2% non-volatile solute exerts a pressure of 1.004 bars at the normal boiling

point of the solvent. What is the molar mass of the solute?

15. Freezing point of a solution having 50 cm3 of ethylene glycol in 50 g water is found to be 34°C.

Calculate the mass of the solute. If Kf for water = 1.86

16. 18 g of glucose C6H12O6 is dissolved in 1 kg of water in a sauce pan. At what temperature will this

solution boil?

(If Kb for water solvent = 0.52 and boiling point of pure water =373.15 K)

17. Vapour pressure of pure water at 298 K is 23.8 mm Hg. 50 g of urea is dissolved in 850 g of water.

Calculate the vapour pressure of water for this solution and its relative lowering.

18. The outermost shells of two eggs are removed . One of the egg is placed in pure water and other is

placed at saturated solution of sodium chloride. What will be observed and why ?

19. What is antifreeze solution ? Which substance is generally used in it ?

20. Explain the process of osmosis with suitable line diagram.

ELECTROCHEMISTRY

1. How does the electrochemical cell differ from electrolytic cell ?

2. The cell mechanism and cell reactions of an electrochemical cell( Galvanic cell ).

3. Depict the electrochemical cell and calculate E°cell for :

Cl2 (g) + 2 I ¯(aq) 2 Cl¯ (aq) + I 2 (s) .

4. What is Standard Hydrogen Electrode ( SHE ) and Normal Hydrogen Electrode ( NHE ) ? Discuss its uses

and importance.

5. Balance following redox reactions with the help of Ion-electron method :

(a) Fe + +

+ Cr2O7 ¯ ¯ Cr+++

+ Fe+++

( in acidic medium )

(b) Zn + NO3 ¯ Zn++

+ NH4 +

( in alkaline medium ).

6. What is salt bridge ? Write functions of salt bridge.

7. Draw labeled diagrams of following :

(a) Standard Hydrogen Electrode

(b) Daniel Cell.

8. Define electrochemical series. Write four applications of it.

9. What are oxidizing agents and reducing agents ? Explain with examples.

10. Write the cell reactions of H2 – O2 fuel cell. Draw its diagram and its two importance.

SOME BASIC QUESTIONS BASED ON INORGANIC CHEMISTRY

1. NCl5 molecule does not exist but PCl5 molecule exists – Explain it with help of VBT.

2. For following molecules :

(a) NH3 (b) H2O (c) HF (d) PCl5 (e) SF6 (f) IF7 (g) XeF2 (h) XeF4

Draw the geometry,

Type of Hybridization,

Name of the Shape, and

Bond angle of each molecules.

3. Ammonia is a Lewis base – Explain with suitable reason.

4. Write outermost electronic configurations of following atoms and their ions :

(a) Fe , Fe + +

, Fe + + +

(b) Sc , Sc + +

, Sc + + +

(c) Cu, Cu + , Cu

+ +

(d) Mn, Mn + +

(e) Zn, Zn + +

(f) Ni, Ni + +

.

5. Explain magnetic behavior of ferrous ion (Fe + +

) and ferric ion (Fe + + +

). Which ion is more

paramagnetic in nature?

6. Cuprous chloride ( CuCl ) is colourless but curic chloride ( CuCl2 ) is coloured ( blue ) – Give reason.

SOME IMPORTANT ORGANIC COMPOUNDS: NOMENCLATURE

A. Write Graphical formula and structural formula and COMMON NAMES of following organic

compounds:

1. Methanol,

2. Ethanol,

3. Propan-1-ol,

4. Propan-2-ol,

5. Butan-1-ol,

6. Butan-2-ol,

7. 2-methyl propan-2-ol,

8. 2-methyl propan-1-ol,

9. Pentan-1-ol,

10. 3-methyl butan-1-ol,

11. 2,2-dimethyl propan-1-ol,

12. Chloromethane,

13. 1-bromo ethane,

14. 1- iodo propane,

15. 2-iodo propane,

16. Methanol,

17. Ethanol,

18. Propanal

19. Methanoic acid,

20. Methanoyl chloride,

21. Methanamide,

22. Methanoic anhydride,

23. Ethanoic acid,

24. Ethanoyl chloride,

25. Ethanamide,

26. Ethanoic anhydride,

27. Methyl methanoate,

28. Ethyl methanoate,

29. Ethyl propanoate,

30. Methyl ethanoate,

31. Propan-2-one,

32. Pentan-2-one

33. Butan-2-one,

34. Ethoxy ethane,

35. Methoxy ethane.

B. Draw the structures of following Aromatic compounds :

1. Benzene,

2. Chlorobenzene,

3. Methyl benzene ( Toluene ),

4. Ortho-xylene

5. Meta-xylene

6. Para-xylene

7. Amino benzene

8. Phenol

9. Benzaldehyde

10. Benzoic acid

11. Benzoyl chloride

12. Benzoic anhydride

13. Benzamide

14. Phenyl chloride

15. Benzyl chloride

16. Acetophenone

17. Benzophenone

18. Nitro benzene

19. Ortho-hydroxy benzaldehyde

20. Pthalic acid

21. Cinnamaldehyde

22. Cinnamic acid

C. Illustrate following name reaction with chemical reaction:-

1 Friedel- crafts reaction

2 Clemensen reduction reaction

3 Carbylamine reaction

4 Fittig reaction

5 Wurtz – fittig reaction

6 Sandmeyer reaction

7 Gattermann reaction

SUBJECT: MATHEMATICS

CHAPTER – Determinants

sec θ - tan θ

1. Evaluate

- tan θ sec θ

2. log3 256 log43 3. 2x x + 3 1 5

=

log38 log49 2(x + 1) x + 1 3 3

0 cos θ sin θ

4. If cos 2θ = 0 then simplify cos θ sin θ 0

Sin θ 0 cos θ

5. By using properties prove that

1 a a2

1 b b2

= (a - b) (b – c) (c – a)

1 c c2

α β Ƴ

6. α2

β2

Ƴ2

= (α - β) (β - Ƴ) (Ƴ - α) (α + β + Ƴ)

β + Ƴ Ƴ + α α + β

a + b + 2c a b

7. c b + c + 29 b = 2(a + b + c)3

c a c + a + 2b

a - b – c 2a 2a

8. 2b b - c - a 2b = (a + b + c)3

2c 2c c - a - b

x x2

1 + x3

9. y y2

1 + y3

= 0 then, show that 1 + xyz = 0

z z2 1 + z

3

a2

+ 1 ab

ac

10. ab b2

+ 1

bc

= 1 + a2 + b

2 + c

2

ca cb c2 + 1

(b + c) 2

a2

a2

11. b2 (c + a)

2 b

2 = 2abc (a + b + c)

3

c2 c

2 (a + b)

2

12. Find the area of whose vertices are (-2, -3), (3, 2) and (-1, -8)

13. Find the equ. of st. line. Whose passing through the (1, 2) and (3, 6) using determinates.

√23 + √3 √5 √5

14. Evaluate √15 + √46 5 √10

3 + √115 √15 5

15. Find the Cofactor and Minors of IInd

row of

2 -3 5

6 0 4 Verify that a11 c31 + a12 c32 + a13c33 = 0

1 5 -7

x + a x x

16. Find the value of x x x + a x = 0

x x x + a

17. If A, B, C are the angles of the then prove that

-1 cos C cos B

cos C -1 cos A = 0

cos B cos A - 1

1 1 1

18. Prove that mC1 m + 1C1 m + 2C1 = 0

mC2 m + 1C2 m + 2C2

19. If a, b, c are the pth

qth

and rth

and rth

term of G. P. then prove that

log a p l

log b q l = 0

log c r l

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