Question # 1

A frame of reference stationed at the earth is an

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Inertial frame

None internal frame

Accelerated frame

Laboratory frame

Angular displacement is

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Scalar quantity

Vector quantity

Basic quantity

None of these

2 radian = ____

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2 m

4 m

57.3 m

114.6 m

The number of spark plug needed in diesel engine is

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0

2

3

4

A layer of rock holding water that allows water to percolate through it with pressure is called.

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Geyeser

Aquifer

Stem vent

Hot spring

the louder the sound, the greater will be its.

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Speed

Frequency

Amplitude

Wave length

The property of bending of light around obstacles is

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Interference

Diffraction

Polarization

Superposition

The temperature of human body on Kelvin scale is

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210K

310K

410K

510K

When a body is whirled in a horizontal circle by means of string, the centripetal force is supplied by

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Mass of body

Velocity of a body

Tension in the string

Centripetal acceleration

In case of point source the shape of wave front is.

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Plane

spherical

Circular

Eliptical

the change in internal energy is defined as

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Q - W

Q-T

Q + P

Q - P

The formula of centripetal acceleration is

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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 time rate of change of angular displacements called.

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Linear velocity

Linear speed

Angular velocity

Angular speed

Newton's rings are formed due to phenomenon of.

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Interference

Dispersion

Diffraction

Polarization

At which of the following temperature a body has maximum internal energy.

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-273 ^oC

0 K

273 K

-273 K

If the wave motion is 0.01 sec and wave speed is 100 ms-1 then frequency of wave is.

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0.5 Hz

1 Hz

10 Hz

100 Hz

In matter, the Atoms are in a state of never ending

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Motion

Rest

Change

State of decline

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