Question # 1

Slope of velocity time graph describes a physical quantity called.

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Displacement

Average velocity

Average acceleration

Momentum

Viscosity is represented by Greek letter

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Which of the following is not directed along the fixed axis of rotation.

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Angular displacement

Angular momentum

Centripetal acceleration

Angular acceleration

For a gas obeying Boyle's Law, if the pressure is doubled, the volume becomes.

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Double

Three fold

One half

Remains the same

Speed of sound in aluminum at 20 ^oC is.

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3600 m/s

5100 m/s

5130 m/s

3500 m/s

In red light is used as compare to blue light then fringe spacing.

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Decreases

Remain same

Increases

Becomes zero

An oscillating mass-spring system produces

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Sound waves

Electromagnetic waves

Light waves

Periodic waves

The drag force increases as the speed of object

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Become zero

Decreases

Increases

Remains constant

The speed of light was measured correctly by

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Galileo

Michelson

Newton

Maxwell

Which of the following is evidence of wave nature of light

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Interference

Diffraction

Polarization

All of these

Angular velocity determines, How fast or, How slow a body is

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Accelerating

Vibrating

Rotating

Oscillating

Dot product of two non zero vectors is zero it angle between them is.

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30^o

60^o

45^o

90^o

The sum of two or more vectors will be a single vector called

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Component vector

Position vector

-ve vector

Resultant vector

Which is the process in which temperature of the system remains constant.

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Adiabatic process

Isochoric process

Isothermal process

Isobaric process

If a vector of magnitude 10 N along y-axis then its component along x-axis is

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0 N

5 N

8.66 N

10 N

The path followed by a projectile in known as its

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Range

Trajectory

Cycle

Height

When a fore of 100 N is acting on an object along x-axis then its vertical component will be.

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50 N

0 N

25 N

10 N

Time rate of change of angular displacement is called

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Linear velocity

Angular velocity

Rotational velocity

Vibrational velocity

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