SUMMER VACATION HOLIDAY HOMEWORK SESSION 2021-22:

CLASS X

(Physics)

Ques1: Draw the ray diagrams for image formation in concave and convex mirrors (all cases) in a presentable way on a full chart paper.

Ques2: Draw the sign convention diagram and discuss it in brief on a full chart-paper.

Ques3: Draw a well labelled diagram showing refraction through Glass slab.

Ques4: A concave mirror produces three times magnified (enlarged) real image of an object placed at 10 cm in front of it. Where is the

image located?

Ques5: Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 x

108 ms-1.

CHEMISTRY

1. 2 mL of sodium hydroxide solution is added to a few pieces of granulated zinc metal taken in a test tube. When the contents are warmed,

a gas evolves which is bubbled through a soap solution before testing. Write the equation of the chemical reaction involved and the test to

detect the gas. Name the gas which will be evolved when the same metal reacts with dilute solution of a strong acid.

2. What is observed when a solution of sodium sulphate is added to a solution of barium chloride taken in a test tube ? Write equation for

the chemical reaction involved and name the type of reaction in this case.

3. Write project on PH scale and indicater and acid , base chemical equation based on chapter 2 on A- 4 paper at least 5 page . OR ART

INTEGRATED PROJECT

4. Classify the following reaction as combination, decomposition, displacement and double displacement reaction:-

a)BaCl2 +H2SO4 → BaSO4 +2HCl

b) 3CuSO4+ 2Al→ Al2 (SO4)3 +3Cu

c) ZnCO3 →ZnO + CO2

d) C +O2→CO2

BIO

1. Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans ?

2. What processes would you consider essential for maintaining life ?

3. What are the differences between autotrophic nutrition and heterotrophic nutrition ?

4. What are the components of the transport system in human beings ? What are the functions of these components ?

कक्षा – x विषय विन्दी

प्रश्न -1 सूरदास पाठ में उद्धव के व्यवहार की तुलना ककस ककस से की गई है ?

प्रश्न -2 गोकपयोों के अनुसार राजा का क्या धमम होना चाकहए ?

प्रश्न -3 नेताजी का चश्मापाठ के आधार पर पानवाले का एक रेखाकचत्र प्रसु्तत कीकजए|

SUBJECT MATHEMATICS

Q1. Use Euclid’s algorithm to find the HCF of 4052 and 12576.

Q2. Show that any positive odd integer is of the form 4q + 1, or 4q + 3, where q is some integer.

Q3. Find the zeroes of the polynomial x2 – 3 and verify the relationship between the zeroes and the coefficients.

Q4. Find all the zeroes of 2x4 – 3x3 – 3x2 + 6x – 2, if you know that two of its zeroes are √2 and −√2.

Q5.ART INTEGRATED PROJECT

Sikkim, a thinly populated North Eastern Indian state is a house to three communities:

Nepalis, Lepchas and Bhutias. Sikkim is a blessed land, where people from all communities live in harmony.

Using your creativity and imagination, draw a Human Face (Sikkim tribes) using geometrical shapes. Referring to the sample picture provided below,

students can use vibrant and bold colours of their own choice.

Material Required:

1. A3 size pastel sheet OR any suitable Materials available with you 2. Colours 3. Geometry box etc.

संसृ्कत

(ग्रीष्मकालीन अिकाश गृि काययम्)

1. पाठ-3- “व्यायाम: सियदा पथ्य:” पाठ के कोई चार श्लोक याद करके पाठ में वदए गए वचत्र के साथ उनका संसृ्कत भािाथय के रूप में िर्यन कीविये ।

5. ”अभ्यासिान् भि” व्याकरर् पुस्तक ( Abhyaswanbhav) के पत्र पररचय में पत्र नं.-02 तथा वचत्र-िर्यनं-नं.-06 का वचत्र सवित कायय करने का प्रयास करें

।

SUBJECT – SOCIAL SCIENCE

ART INTEGRATED PROJECT :

SHOW WITH SUITABLE DIAGRAMS (DRAW/PASTE) :

Famous singers/musicians of Rajasthan and their musical instruments ,folk music ,famous programmes/events they are associated .

OR

Suppose you have visited some museums ,monuments of Rajasthan,describe the important things noticed there .

PROJECT :

SHOW WITH DIAGRAM :

Multipurpose River Valley Projects and alternate water supply methods

Role of multipurpose river valley projects

Evaluation of positive and negative aspects of river valley projects

Case study on one river valley and one local area conservation project

Narmada Bachao Andolan

Tehri Dam Andolan

The case study should include the following:-

Rehabilitation of the displaced population

Environment Impact Assessment

OR

Development and changes in Agriculture of India since independence

Transition from subsistence to commercial farming

Change in the cropping pattern in Punjab, Maharashtra and Tamil Nadu

Green Revolution I and II and its impact both positive and negative

OR

Industrial Pollution and Environmental Degradation

Types of pollutants

Ill-effects of different pollutants

Consequences of pollution study of any local river, factory or land fill.

OR

Tourism

Development of different types of tourism

Important destinations of foreign and Indian tourists in at least 2 States of India

Tourism as an upcoming industry

Hindrance in the development of tourism in India

HOME ASSIGNMENT :

1. How can you conserve resources ? 2. Describe the natural resources found in India.. . How can they be conserved ?

3. Describe about the natural resources found in Rajasthan, Assam . How can they be harnessed and preserved .

NOTE :

1. THE ART INTEGRATED PROJECT SHOULD BE DONE IN SCRAP BOOK COVERED WITH

BLACK OR OTHER COLOURED ART PAPER AND DESIGN IT.

2. PROJECT SHOULD BE DONE IN SCRAP BOOK/A4 SIZE PAPER.

3. HOME ASSIGNMENT SHOULD BE DONE IN A4 SIZE PAPER .

SUB: ENGLISH 1.Read Diary of a Young Girl by Anne Frank in your vacation. Also illustrate one of your favourite scenes from that story.

2. Listen to a music programme on Radio or T.V. and write short description of the performance.

3.Have you ever been in great difficulty and felt that only a miracle could help you? How was your problem solved? Speak about this and make a two

minutes of video recording, in school uniform, delivering your experience coherently and with proper fluency.

OR

Interview your parents and grandparents to find out about the things / activities they used to do when they were your age. Tabulate the activities which

no longer exist. Such as leisure time activities, games, customs practices, work done etc. (minimum 10 activities). Make it interesting. Your interview

must have a lot of details for the readers to understand the yesteryears clearly.

Art education (integrated with EBSB)

(i) Collect data on any 2 historical monuments of Rajasthan. Write about its Aesthetics, history, and other relevant

information. Also draw or paste appropriate pictures of the monuments you have written about.

(ii) Draw and paint any 2 folk paintings of Rajasthan. Also collect and paste a few photos of Rajasthani Folk art giving a

brief note.

Note. Please do the assignments in your drawing copy only.