First Year Physics Chapter 11 Online MCQ Test for 1st Year Physics Chapter 11 (Optical Instruments)


This online test contains MCQs about following topics:

Kinetic Theory of Gasses - Internal Energy - Work and Heat - First law of Thermodynamics - Molar Specific Heats of a Gas - Reversible and Irreversible processes - Heat Engine - Second law of Thermodynamics - Carnot Engine and Carnot's Theorem - Thermodynamic Scale of Temperature - Petrol Engine - Entropy - Envirnmental Crisis as Entropy Crisis

FSC Part 1 Physics Ch. 11 Test

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FSC Part 1 Physics Chapter Wise Test
(English Medium)

MCQ's Test For Chapter 11 "Physics Fsc Part 1 Chapter 11 Online Test"

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  • Time Allowed20

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Physics Fsc Part 1 Chapter 11 Online Test

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Question # 1

A no intertial frame of reference.

Question # 2

Relativistic velocity is of the order of.

Question # 3

If a material object moves with the speed of light 'c' its mass becomes 

Question # 4

The speed of beam light of a car while moving with high speed as compared to its rest positionis

Question # 5

A rod at rest appears to an observer just a mere point when he moves across it as speed.

Question # 6

A photon is particle of light. What is its mass when it moves with 0.9 C?

Question # 7

The mass of an object will be doubled at the speed.

Question # 8

Relativistic mechanics yields results different from classical mechanics for objects moving with.

Question # 9

If an observeris moving in the same direction as a sound wave, the velocity of the wave seems to be 

Question # 10

The theory of relativity was proposed in 

Question # 11

If  a space craft of rest legnth 'lo' is movng with a speed equal to speed of light, then its relativstic legnth l , will be 

Question # 12

The length of rod at rest as measurd by an observer moving parallel to it with relativistic speed is given by

Question # 13

it the rest mass of a particle mo increased to m due to its high speed then its kinetic energy is.

Question # 14

Which one of the following physical quantities is indpednent of relativistic speed.

Question # 15

The energy  'E' eqivalent to mass given by 

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Sr.# Question Answer
1

The mass of an object will be doubled at the speed.
A.

2.6 x 10 7 m/s

B.

1.6 x 108 m/s

C.

2.6 x 108 m/s

D.

None of these
2

it the rest mass of a particle mo increased to m due to its high speed then its kinetic energy is.
A.

( m - mo ) c2

B.

1/2 mv2

C.

1/2 mc2

D.

1/2 (m -mo0
3

The speed of beam light of a car while moving with high speed as compared to its rest positionis
A.

Greater

B.

Less

C.

Same

D.

Zero
4

A photon is particle of light. What is its mass when it moves with 0.9 C?
A.

9.1 x 10-31 kg

B.

1.67 x 10-19  kg

C.

1.67 x 10-27 kg

D.

Zeri
5

If a material object moves with the speed of light 'c' its mass becomes 
A.

Equal to its rest mass

B.

Infinite

C.

Four times of its rst mass

D.

Double of its rest mass
6

A rod at rest appears to an observer just a mere point when he moves across it as speed.
A.

Equal to the speed of light

B.

Double the speed of light

C.

Three-fourth the speed of light

D.

None of the above
7

A no intertial frame of reference.
A.

Moves with some acceleration 

B.

Is always rest on earth

C.

Moves with uniform velocity

D.

All of the above
8

Relativistic mechanics yields results different from classical mechanics for objects moving with.
A.

Low velocity

B.

Velocity equal to that of sound waves

C.

Veloitiy geater than sound waves

D.

Velocity approaching that of lignt
9

Relativistic velocity is of the order of.
A.

1/15 of the velocity of light

B.

1/20 of the velocity of light

C.

1/10 of the velocity of light

D.

1/25 of the velocity of light
10

If an observeris moving in the same direction as a sound wave, the velocity of the wave seems to be 
A.

Less

B.

More

C.

Constant

D.

Sum of the two velocities

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