Question # 1

The K.E. of bullet of mass 500 gm moving at a speed of 200 ms-1

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250 J

125 J

2500 J

10,000 J

The speed of stars and galaxies can be calculated by

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Compton effect

Stefan's law

Doppler's effect

Pascal's law

In rotational motion the analogous of mass is

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Angular acceleration

Torque

Moment of inertia

Angular momentum

Physics bases on Newtonian mechanics is called

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astrophysics

Modern Physics

Classical Physics

Meta Physcis

The moment of inertia is analogue to

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Mass

Weight

Torque

Force

Stationary waves are generated on a string of high l, if tension is increased , frequency of vibration will

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Decrease

Unchanged

Half

Increases

Dimensional analysis helps in

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To convert one unti into another

Finding relation between quantities

To confirm the correct answer

All of the abvove

Transformation of heat other forms of energy is discussed in

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Thermal physics

Thermodynamics

Atomic physics

Nuclear physics

The collision between the gas molecules is

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Elastic

Inelastic

Both a and b

None of these

The amplitude of a vibrating body at resonance in vacuum is

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Minimum

Maximum

Zero

Infinite

The distance between two consecutive crests of troughs is called

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Time period

Wave length

Frequency

Displacement

In rotational motion the torque is equal to rate of change of

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Angular velocity

Linear momentum

Angular momentum

Angular acceleration

Which one is renewable source of energy.

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Coal

Uranium

Biomass

Natural gas

Han discovered uranium fissionin

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1940

1938

1935

1939

When a vector is multiplied by a (-)ve number its direction

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Remains constant

Reversed

Change by 90°

None of these

The angle of projection for which its maximum height and horizontal range are equal

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46 ^o

56^o

66^o

76^o

2 radian = ____

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2 m

4 m

57.3 m

114.6 m

Example of thin film is.

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Soap burble

convex lens

Concave lens

Glass plate

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