Dtg Important Phy 1

8/16/2019 Dtg Important Phy 1

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PHYSICS 1) THE DIMENTION OF POWER IS -----------.

A) MLT-1 B) MLT-2

C) ML2T-1

D) ML2T-3

2) THE UNIT WHICH ARE SELF DEFINED ARE CALLED _______.

A) BASIC UNITS B) DERIVED UNITS

C) SUPPLEMENTARY UNITS

D) SI UNITS

3) ONE KELVIN IS DEFINED AS THE ________ OF WATER.

A) BOILING POINT B) MELTING POINT

C) TRIPPLE POINT

D) FREEZING POINT

4) THE NOTATION OF MULTIPLIER MILLI IS ________.

A) 10-6 B) 10-3

C) 10-4

D) 10-2

5) PRESSURE IS A__________ QUENTITY.

A) SCALAR

B) VECTOR

C) NON OF THESE

D) DIMENTIONLESS QUENTITY

6) IF THE TWO VECTORS HAVE SAME MAGNITUTE, THEY ARE CALLED________

VECTORS. A) EQUAL

B) EQUIVALENT

C) PARALLEL D) PERPENDICULAR

7) THE DIRECTION OF A NULL VECTOR IS ________.A) ARIBITARY

B) PARALLEL TO X AXIS

C) PARALLEL TO Z AXIS

D) NON OF THESE8) A.B=0 IF TWO VECTOR ARE _____________ TO EACH OTHER.

A) PARALLELB) ANTIPARALLEL

C) PERPENDICULARD) COINCIDENT

9) AT CONSTANT NET FORCE THE ACCELERATION OF A SYSTEM IS INVERSILY

PROPORTIONAL TO ITS MASS IS CALLED _________A) FIRST LAW OF MOTION

B) THIRD LAW OF MOTION

C) LAW OF ACCELERATION

D) LAW OF INERTIA

10) THE TWO FORCE ACTION AND REACTION ALWAYS ACT ON A ___________

SYSTEM.


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A) SINGLE BODY

B) TWO BODY C) CLOSED BODY

D) NON

11) IF F1=3N AND F2 = 4N ACTION ON A BODY AND ARE PERPENDICULAR TO

EACH OTHER, THE MAGNITUDE OF RESULTANT FORCE WILL BE _________.

A) 15N

B) 13N

C) 5N

D) 10N 12) FLUID FRICTION IS ALSO KNOWN AS _________.

A) VISCOUS DRAGG

B) COHESSIVE FORCE

C) ADHESSIVE FORCE

D) NON

13) THE RATE OF CHANGE OF LINEAR MOMENTUM OF A BODY IS EQUAL TO THE

MAGNITUDE OF ____________ ON IT.

A) IMPULSE

B) NET FORCE

C) AMGULAR MOMENTUMD) NON

14) COLLISION OF MOLECULES OF A GAS WITH THE WALLS OF A CYLINDER IN

WHICH THE GAS ENCLOSED IS KNOWN AS _________.

A) ELASTIC COLLISION

B) INELASTIV COLLISION C) ONE DIMENTIONAL COLLISION

D) NON

15) ACCORDING TO IMPULSE MOMENTUM THEOREM THE IMPULSE OF FORCE

UPON A BOSY IS EQUAL TO THE CHANGE OF _________ OF A BODY.

A) VELOCITY B) ACCELERATION

C) LINEAR MOMENTUM

D) NON

16) FLUID IS A WORD COMMOM FOR ______________.

A) LIQUID

B) SOLID

C) BOTH D) GAS

17) SURFACE FRICTION DEPEND ON _______________.

A) THE AREA OF CONTANT

B) LENGTH OF SURFACE C) NORMAL FORCE

D) NON

18) PROJECTILE MOTION IS A __________ MOTION.

A) ONE DIMENTION

B) TWO DIMENTION

C) THREE DIMENTION

D) NON

19) IN ONRMAL CIRCUMSTANCES WHITCH QUENTITY IS NOT SIGNFICIET IN CASE

OF PROJECTILE MOTION? ANS IS_________.

A) VISCASITY OF AIR


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B) AIR FRICTION

C) TEMP COEFFICIENT OF AIR D) NON

20) THE RANGE OF PROJECTILE REMAINS THE SAME FOR THE FOLLOWING PAIRS

OF ANGLE.

A) 10 TO 80

B) 20 TO 75

C) 50 TO 6O

D) NON

21) THE RANGE OF PROJECTILE DOES NOT CHANGE AT Q= ___________. A) 45+ALPHA

B) 45-ALPHA

C) 45±ALPHA

D) NON 22) THE RANGE OF PROJECTILE BECOMES ______________ OF ITS MAGNITUDEOF

VILOCITY IS DOUBLED.

A) TWICE B) FOUR TIMES

C) THREE TIMES

D) NON 23) ONE RADIAN IS EQUAL TO ______________.

A) 53.7

B) 57.3

C) 57 D) 57.9

24) THE VECTOR FORM OF V=WR IS __________.

A) V=R x W

B) V=W x R

C) V=W . R

D) NON

25) THE EXPRESSION OF TANGENTIAL ACCELERATION OF A BODY ALONG A

CIRCULAR PATH IS __________.

A) At= γ/α

B) At= γα

C) At= γα2

D) At=α/γ 26) THE UNIT OF ANGULAR ACCELERATION IS _________________

A) RAD/SEC

B) RAD/SEC2

C) M/SEC2

D) NON

27) THE ANGLE BETWEEN THE POSITION VECTOR AND THE VELOCITY VECTOR

ALONG A CIRCULAR PATH ID _________.

A) 90 B) 0

C) 45

D) 60

28) THE RATIO Vs/V IS KNOWN AS ________ IN AERODYNAMICS.

A) MACH NUMBER

B) QUANTUM NUMBER

C) NUCLEON NUMBER


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D) NON

29) THE MOTION ALONG A CIRCULAR PATH WITH CONSTANT SPEED IS KNOWN

AS __________.

A) UNIFORM CIRCULAR MOTION

B) ACCELERATION MOTION

C) NON ACCELERATED MOTION

D) NON

30) THE ERROR IN AN INSTRUEMENT IS KNOWN AS _______________.

A) SYSEMATIV ERROR

B) PERSONAL ERROR C) RANDOM ERROR

D) NON

31) THE SLOPEOF DISPLACEMENT TIME GRAPH IS CALLED _____________.

A) UNIFORM VELOCITY

B) VARIABLE VELOCITY

C) INSTANTENUOUS VELOCITY

D) NON

32) IF THE LINE OF ACTION OF A FORCE PASSES THROUGH THE POINT OF

35ROTATION, THEN MAGNITUDE OF TORQUE WILL BE ________.

A) MAX B) OPTIMUM

C) ZERO

D) NON

33) THE FORCE, EQUAL IN MAGNITUDE BUT OPPOSITE IN DIRECTION, FORM A

CUOPLE IF THEIR TINES OPPOSITE ARE ____________. A) EQUADISTANT FROM THE AXIS OF RORATION

B) COINCIDENT

C) NON COINCIDENT

D) NON

34) THE TURNING EFFIECT OF FORCE UPON A BODY IS CALLED __________. A) TORQUE

B) IMPULSE

C) INERTIA

D) MOMENTUM.

35) UNIFORM MOTION OF A PARATRAPER IS AN EZAMPLE OF _______.

A) STATIC EQUILIBRIUM

B) DYNAMIC EQUILIBRIUM C) ROTATION EQUILIBRIUM

D) NON

36) A BODY IS SAID TO BE IN EQUILIBRIUM IF IT HAS NO ________.

A) ACCELERATION B) VELOCITY

C) MOMENTUM

D) ENERGY

37) THE RATE OF CHANGE OF ANGULAR MOMENTUM OF A BODY IS CALLED

________.

A) TORQUE

B) IMPULSE

C) FORCE

D) NON


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38) THE POINT AT WHICH THE WHOLE MASS OF A BODY IS CONCENTRATED IS

KNOWN AS ________. A) CENTRE OF MASS

B) CENTRE OF CHARGE

C) CENTRE OF ROTATION

D) NON

39) DUE TO SPHERICAL SYMMETRY THE CENTERE OF A MASS OF DIFFERENT

METAL SHELLS WILL BE _________.

A) IDENTICAL

B) DIFFERENT C) SYMMETRY

D) NON

40) THE EXPRESSION OFR “g” ON THE SURFACE OF THE EARTH IS ________.

A) GMe/Re

B) GMe/(Re)2

C) GRe/Me

D) Me/(GRe)2

41) IF THE MASS OF THE EARTH IS DOUBLE, THE VALUE OF UNIVERSAL

GRAVITAITION CANSTANT BECOMES ________.

A) SAME B) THREE TIME

C) FOUR TIME

D) NON

42) THE LENGTH OF TUNNEL OF ASATALITE IS 20M, THE FREQUENSCY OF A SPIN

MOTION WILL BE ______________ TO REMOVE THE STATE OF WEIGHTLESSNESS

IN THE CHAMBERS OF SATALITE.

A) 9.5 REV/MIN

B) 10 REV/MIN

C) 15 REV/MIN

D) 9 REV/MIN 43) POWER OF A BODY IS DEFINE AS THE DOT PRODUCT OF _______.

A) FORCE AND VELOCITY

B) FORCE AND DISPLACEMENT

C) FORCE AND MOMENTUM

D) NON

44) ONE HOURSE POWER IS CALLED TO ________.

A) 3.6x106J B) 3.6x105J

C) 3.6J

D) 3.6x107J

45) ONE HOURSE POWER IS EQUAL TO _________________. A) 500FT-LB/SEC

B) 550FT-LB/SEC

C) 525FT-LB/SEC

D) NON

46) ONE MILE IS EQUAL TO ___________.

A) 1760YARDS

B) 1700YARDS

C) 1750YARDS

D) NON

47) ONE CALORI IS EQUAL TO ________.


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A) 4.2J

B) 4J C) 5J

D) 4.5J

48) THE POTENTIAL ENERY OF A BODY IN A GRAVITATION FIELD WITH RESPECT

TO ________. IS KNOWN AS THE ANSOLUTE P.E OF THAT BODY.

A) MAX

B) ZERO

C) CENTRE OF EARTH

D) NON 49) FORCE OF FRICTION IS A ___________ FORCE.

A) CONSERVATIVE

B) NONCONSERVATIVE

C) COHESSIVE

D) NON

50) THE VALUE OF Re (RADIUS OF THE EARTH) FROM, THE SURFACE OF TH

EARTH.

A) HALF

B) ONE FOURTH

C) ONE THIRD D) NON

51) THE APPARENT QIEGHT OF A BOSY INSIDE A LIFT BECOMES __________ IF THE

LIFT IS MOVING DOWNWARD WITH a=g.

A) DOUBLE

B) THREE TIMES

C) ZERO

D) MAX

52) THE WEIGHT OF A BODY AT THE CENTRE OF EARTH IS _________.

A) ZERO

B) 9.8N C) 980N

D) 0.98N

53) ONE HOURSE POWER IS EQUAL TO ____.

A) 746WATT

B) 740WATT

C) 700WATT

D) 846WATT 54) THE ACCELERATION OF A SIMPLE HARMONIC OSCILLATOR IS DIRECTLY

PROPORTIONAL TO _______ BUT ALWAYSDIRECTED TOWARD THE MEAN

POSITION.

A) DISPLACEMENT B) AMPLITUDE

C) VELOCITY

D) NON

55) THE POINT AT WHICH THE SPEED OF A PROJECTION OF A PARTICLE IS EQUAL

TO THE SPEED OF PARTICLE IS KNOWN AS _____.

A) MEAN POSITION

B) EXTREME POSITION

C) MID-POSITION B/W MEAN AND EXTREME POSITION

D) NON


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56) THE RESPONSE OF A VIBRATING BODY WITH GREATEST AMPLITUBE IS

CALLED ________. A) RESONANCE

B) IMPEDANCE

C) REACTANCE

D) NON

57) IN THE NEGLIGENCE OF AIR FRICTION THE MOTION OF SIMPLE PENDULUM IS

CALLED _______.

A) DAMPED OSCILLATION

B) FORCED OSCILLATION C) FREE OSCILLATION

D) NON

58) THE DISTANCE FROM THE POINT OF SUSPENSION TO THE CENRE OF GRAVITY

OF THE BOB OF SIMPLE PENDULUM IS KNOWN AS ITS _________.

A) EFFECTIVE LENGTH

B) AMPLITUDE

C) DISPLACEMENT

D) NON

59) THE EFFECTIVE LENGTH AND FREQUENCY OF SECTION‟S PENDULUM ARE

________. A) 100CM AND 0.5HZ

B) 90CM AND 0.5HZ

C) 100CM AND 2HZ

D) NON

60) WAVES ARE _____ CARRIERS. A) POTENTIAL

B) TEMPERATURE

C) ENERGY

D) NON

61) ___________. ARE ALSO LONGITUDINAL WAVES. A) INFRASONIC WAVES

B) WAVES IN A ROPE

C) WATER WAVES

D) LIGHT WAVES.

62) DOPPLER‟S EFFECT IS VALID WHEN ______ __.

A.

Vs>V

B. Vs=V

C. Vs


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C) Tμ D) NON

65) IF BOTH THE ENDS OF A STRETCHED STRING ARE FIXED THE FORMULA FOR

NTH HARMONIC WILL BE __________.

A) FN=N/F1

B) FN=F1/N

C) FN=NF1

D) NON

66) ACCORDIGN TO LAPLACE THE OHENOMENON OF PROPAGATION OF SOUND

WAVES FROM A SOURCE TO A LISTNER IS ________. A) AN ISOTHERMAL PROCESS

B) AN ISOBARIC PROCESS

C) AN ADIABATIC PRECESS

D) AN SIOCHORIC PROCESS 67) THE INTENCITY OF LEAST FEEBLE SOUND IS ______.

A) 10-10

B) 10-12 C) 10-14

D) NON

68) THE INTENCITY LEVEL OF FAINEST SOUND IS _________. A) 30DB

B) 80DB

C) 0DB

D) 10DB 69) THE MAGNITUDE OF AUDITORY SENSATION PRODUCED BY SOUND WAVES

ON HUMAN EAR-DRUM IS KNOWN AS THE ___________.

A) LOUDNESS OF SOUND

B) PITCH OF SOUND

C) INTENCITY OF SOUND

D) NON

70) PITCH OF SOUND IS DIRECTLY RELATED TO ITS ___________.

A) WAVELENGTH

B) FREQUENCY

C) TIME PERIOD

D) SPEED

71) THE VOICE OF A MAN OR A WOMAN IS DISTINGUISHED BY _________.

A) THE PITCH OF SOUND

B) THE QUALITY OF SOUND

C) INTENCITY OF SOUND

D) NON

72) __________ IS KNOWN AS A DIVERGING LENS.

A) A CONCAVE LENS

B) A CONVEX LENS

C) A PLANO-CONCAVE LENS

D) NON

73) THE IMAGE FORMNED BY A CONCAVE LENS IS ________.

A) VIRTUAL AND INVERTED

B) REAL AND INCERTED

C) VIRTUAL AND ERECT

D) NON


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74) A TRANSPARENT MEDIUM BOUNDES BY TWO SURFACE AT LEAST ONE OF

SPHERICAL IS KNOWN AS ___________. A) LENS

B) MIRROR

C) PRISM

D) NON

75) A TRANSPARENT MEDIUM BOUNDED BY THREE RECTANGULAR AND TWO

TRIANGLE FACES IS CALLED _____.

A) GLASS SLAB

B) GLASS PRISM C) GLASS SHEET

D) NON

76) THE RECIPROCAL OF THE POWER OF LENS IS CALLED ITS _________.

A) APERTURE

B) CIAMETER

C) FOCAL LENGTH

D) NON

77) THE RAYS PARALLEL

TO PRINCIPAL AXIS OF A CONVEX LENS BECOME AGAIN PARALLEL TO THE

OPTICAL AXIS OG ANOTHER CONVEX LENS WHEN PASS THROUGH IT. THIS ISPOSSIBLE IF _________.

A. FOCI COINCIDE EACH OTHER

B) FOCI DISPLACED BY „F‟

C) FOCI DISPLACED BY „2F‟

D) NON

78) IN CASE OF GALILEAN TELESCOPE THE LENGTH OF TELESCOPE IS

APPROXIMATED AS ________.

A) Fo+Fe B) Fo-Fe

C) Fo/Fe

D) NON

79) IMAGE FORMED BY A CONVEX LENS IS VIRTUAL WHEN THE OBJECT PLACED

IS ___________>

A) AT „2F‟

B) AT „F‟

C) BEYOND „2F‟

D) WITHIN FOCAL LENGTH

80) THE PRINCIPLE FOCUS OF A COCAVE LENS IS A _________ POINT. A) REAL

B) VIRTUAL

C) FIXED

D) NON 81) THEWAVE THEORY OF LIGHT IS GIVEN BY __________.

A) MAX PLANK

B) MAX-WELL

C) NEWTON

D) HYGEN

82) THE EMISSION OF LIGHT RAYS IS RADIAL FROM A _________.


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A) EXTENDED SOURCE

B) DIFFUSE SOURCE C) POINT SOURCE

D) NON

83) THE SPACE OCCUPIED BY A BRIGHT AR A DARK FRINGE ON THE SCREEN IS

CALLED _________.

A) SLIT SPACING

B) FRINGE SPACING

C) GATING ELEMENT

D) NON 84) _____________ ARE CALLED FRINGS OBTAINED ON THE SCREEN.

A) ALTERNATE BRIGHT AND DARK BANDS

B) ALTERNATE DARK AND BRIGHT LINES

C) ALTERNATE DARK AND BRIGHT RINGS

D) ALL OF THEM

85) ___________ CAN PRODUCE THE PHASE DIFFEREN AMONG THE INTERFERING

LIGHT WAVES.

A) PATH DIFFERENCE

B) TIME DIFFERENCE

C) BOTH D) NON

86) BEATS ARE PRODUCES AS A RESULTS OF ________.

A) INTERFANCE IN SPACE

B) INTERFANCE IN TIME

C) BOTH D) NON

87) ________. ARE NOT THE ELECTROMAGNETIC WAVES,

A) X-RAYS

B) γ-RAYS C) INFRA-REDRAYS

D) SOUND WAVES

88) TEMPERATUREIS KNOWN AS ________ QUANTITY.

A) MICROSCOPE

B) MACROSCOPIC

C) VECTOR

D) DIMENSIONLESS

89) ACCORDING TO CARNOT THEROREM WE HAVE __________.

A) Q1/Q2=T1/T2

B) Q2/Q1=T2/T1

C) Q1+Q2=T1+T2

D) NON 90) IN ISOLATED STATE THE MAGNITUDE OF CHRAGE ON AN ATOM IS EQUAL TO

__________.

A) NE

B) N/E

C) N+E

D) N-E 91) THE PRINCIPLE OF CAPACITOR IS BASED UPON ________.

A) ELECTROSTATIC INDUCTION

B) ELECTROMAGNETIC INDUCTION

C) MUTUAL INDUCTION


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D) SELF INDUCTION

92) THE CHARGE „E‟ IS FIOWING THROUGH THE WIRE IN ONE SECONF, SO THE

CURRENT THROUGH THE WIRE IS _________.

A) 1.6x10-10

B) 1.6x10-19

C) 1.6x10-20

D) 1.6x10-08

93) THE FRACTIONAL CHANGE IN RESISTANCE OF WIRE DUE TO ONE DEGREE

RISE IN ITS TEMPERATURE IS CALLED ___________.

A) TEMP B) TEMP OF COEFF OF RESISTIVITY

C) RESISTIVITY

D) NON

94) THE SI UNIT OF MAGNETIC INDUCTION IS _________.

A) TESLA

B) WEBER

C) WEBER/A

D) NON

95) THE PRINCIPLE OF TRANSFORMER IS BASE UPON ________.

A) ELECTROSTATIC INDUCTION B) SELF INDUCTION

C) MUTUAL INDUCTION

D) NON

96) ELECTRIC FLUX IS DEFINE AS THE DOT PRODUCT OF ___ AND___.

A) E AND F B) E AND B

C) E AND A

D) NON

97) MAGNETIC INDUCTION „B‟ IS ALSO KNOWN AS __________.

A) MAGNETIC FLUX DENSITY B) MAGNETIC INTENSITY

C) TORQUE

D) NON

98) IN A TRANSFORMER SOFT IRON CORE IS USED TO AVOID THE __________.

A) PERMANENT INDUCTIVE

B) TEMP INDUCTIVE

C) MUTUAL INDUCTIVE D) NON

99) SPLIT-RING IN DC GENERATOR IS USED AS __________--.

A) COMMUTATOR

B) SLIDER C) CIRCUIT BRAKER

D) NON

100) A VOLTMETER IS FORMED BY CONNECTING A HIGH RESISTANCE IN ________

WITH A GRADUATED GALVANOMETER

A) PARALLEL

B) SERIES

C) SERIES-CUM-PARALLED

D) NON

101) IN N-TYPES SUBSTANCE ELECTRON ARE ____________.

A) MINORITY CARRIERS


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B) MAJORITY CARRIERS

C) BOND PAIRS D) NON

102) THE BARRIER POTENTIAL FOR GERMENIUM DIODE IS ___________.

A) 0.7 VOLT

B) 0.3 VOLT

C) 1 VOLT

D) 1.5 VOLT

103) THE SPACE BOUNDED BY THREE MUTUALLY PERPENDICULAR AXIS IS

CALLED __________. A) FRAME OF REFERENCE

B) INERTIAL FRAME OF REFERENCE

C) NON INERTIAL FRAME OF REFERENCE

D) NON

104) THE MINIMUM ENERGY OF PHOTON FOR PAIR PRODUCTION IS _________.

A) 1.04 MEV

B) 1.02 MEV

C) 2 MEV

D) 5 MEV

105) CHARACTERISTIC X-RAYS ARE PRDUCE AS A RESULT OF _________. A) INNER-SHELL TRANSITION

B) ATOMIC TRANSITION

C) NUCLEAR

D) NON

106) THE ENERGY OF PHOTON CORRESPONDING TO THE SHORTEST

WAVSLENGTH IN LYMAN SERIES IS EQUAL TO _________.

A) 13.6 EV

B) 10 EV

C) 14 EV

D) 13 EV 107) THE RELATIVE ABUNDANCE OF URANIUM -235 IN NATURE IS _________.

A) 0.7%

B) 7%

C) 0.75%

D) 0.65%

108) LIQUID ______ IS USED IN LMFBR AS A COOLENT.

A) POTASSIUM B) SODIUM

C) CALCIUM

D) MAGNESIUM

109) THE SPEED OF b-PARTICLE IS ________ OF THE SPEED OF γ-PARTICLES. A) 1/10TH B) 1/100th

C) 1/5 th

D) 1/3 th

110) WILSON CLOUD CHAMBER IS USED TO TRACE THE ____________ OF CHARGE

PARTICLES.

A) MASS

B) CHARGE

C) PATH OF MOTION


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D) INTENSITY

111) IN A GMP-TUBE COUNTER MIXTURE OF ARGON ALCOHOL SI USED FOR

_________ .

A) QUEBCHING

B) NEUTRALIZATION

C) CONDENSATION

D) NON

112) IN POSITION- DECAY ON ENERGY PARTICLE ALSO FORMS WHICH IS CALLED

__________.

A) NEUTRINO B) ANTI-NEUTRINO

C) PION

D) BOZON

113) AT __________ THE CENTRIGRATE SCALE COINCIDES WITH A FAHENHEIT

SCALE.

A) -40

B) 40

C) 60

D)

-60

“IT IS NICE TO BE INPORTANT BUT IT IS

MORE IMPORTANT TO BE NICE.”

“ANSWER SHEET”

1

D

31 a

61

A

91

A


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2

A

32

C

62

C

92

B

3

C

33

C

63

A

93

A

4

B

34

A

64

A

94

A

5

A

35

B

65

C

95

C

6

B

36

A

66

C

96

C

7

A

37

A

67

B

97

A

8

C

38

A

68

C

98

B

9

C

39

A

69

A

99

A

10 B 40 B 70 B 100 B

11

C

41

A

71

B

101

B

12

A

42

A

72

B

102

B

13

B

43

A

73

A

103

A

14

A

44

A

74

A

104

B

15

C

45

B

75

B

105

A

16

C

46

A

76

C

106

A

17

C

47

A

77

A

107

A

18

B

48

B

78

B

108

B

19

B

49

B

79

C

109

A

20

A

50

B

80

B

110

C

21

C

51

C

81

B

111

A

22

B

52

A

82

C

112

A

23

B

53

A

83

B

113

A


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24

B

54

A

84

D

25

B

55

A

85

A

26

B

56

A

86

B

27

A

57

B

87

D

28

A

58

A

88

B

29

A

59

A

89

B

30

A

60

C

90

A

Dtg Important Phy 1

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