Physics Fsc Part 1 Full Book Online Test With Answers

Physics Fsc Part 1 Full Book Online Test

Sr. # Questions Answers Choice
1

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

 <p>2.6 x 10 <sup>7</sup> m/s</p> <p>1.6 x 10<sup>8</sup> m/s</p> <p>2.6 x 10<sup>8</sup> m/s</p> <p>None of these</p>
2

The energy  'E' eqivalent to mass given by 

 <p>Ec2</p> <p>E/C2</p> <p>E/C</p> <p>C2/E</p>
3

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

 <p>Equal to its rest mass</p> <p>Infinite</p> <p>Four times of its rst mass</p> <p>Double of its rest mass</p>
4

The theory of relativity was proposed in 

 <p>1920</p> <p>1905</p> <p>1915</p> <p>1895</p>
5

A no intertial frame of reference.

 <p>Moves with some acceleration&nbsp;</p> <p>Is always rest on earth</p> <p>Moves with uniform velocity</p> <p>All of the above</p>
6

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

 <p>Equal to the speed of light</p> <p>Double the speed of light</p> <p>Three-fourth the speed of light</p> <p>None of the above</p>
7

Relativistic velocity is of the order of.

 <p>1/15 of the velocity of light</p> <p>1/20 of the velocity of light</p> <p>1/10 of the velocity of light</p> <p>1/25 of the velocity of light</p>
8

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

 <p>Charge</p> <p>Length</p> <p>Mass</p> <p>Time</p>
9

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

 <p>Greater</p> <p>Less</p> <p>Same</p> <p>Zero</p>
10

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

 <p>Less</p> <p>More</p> <p>Constant</p> <p>Sum of the two velocities</p>
11

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

 <p>Low velocity</p> <p>Velocity equal to that of sound waves</p> <p>Veloitiy geater than sound waves</p> <p>Velocity approaching that of lignt</p>
12

Production of induced emf in a coil is linked with.

 <p>Nature of coil</p> <p>Shape of coil</p> <p>Flux through coil</p> <p>Chagn in flux through coil</p>
13

Lenz's law deals with the.

 <p>Magnitude of induced current</p> <p>Magnitude of induced emf</p> <p>Direction of induced emf</p> <p>Direction of induced current</p>
14

Lenz's law is consistent with

 <p>Law of conservation of energy</p> <p>Law of conservation of charge</p> <p>Law of conservation of momentum</p> <p>Law of conservation of mass</p>
15

The direction of induced current is always so as ato oppose the chagne. Which causes the current, This is the statemetn of.

 <p>Lenz&#39;s law</p> <p>Faraday&#39;s law</p> <p>Gauss&#39;s law</p> <p>Joule&#39;s law</p>
16

The motional emf depends upon the.

 <p>Length of a conductor</p> <p>Strength of a magnetic field</p> <p>Speed of the conductor</p> <p>All of the above</p>
17

The current produced when the conductor moes across a magnetic field is called

 <p>Electric potential</p> <p>Electrosatic induction&nbsp;</p> <p>Electromagnetic induction&nbsp;</p> <p>Electric polarization</p>
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