Question # 1

When a body moves to and fro motion, this type of motion is called

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translatory motion

circular motion

oscillatory motion

all of them

If F=0.04 N and X=4 cm then K=

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1 Nm^-1

2 Nm^-1

3 Nm^-1

4 Nm^-1

The resonance will be sharp, if the amplitude decreases rapidly at a frequency

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equal to the resonant frequency

slight different from the resonant frequency

greatly different from the resonant frequency

any one of them

Which one of the following wave motions is transverse:

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Wave motion produced in water when a piece of stone is thrown into it

Pulling of weight hanging vertically with a spiral spring

Both of these

None of these

The time period of pendulums of different lengths would be

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same

different

both of them

none of them

Longitudinal waves are also called:

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Congressional waves

Transverse waves

Radio waves

None of them

Transverse waves can be set up:

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Solids

Liquids

Gases

All of them

A swing has

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one natural frequency

two natural frequencies

three natural frequencies

four natural frequencies

Wave disturbances may also come in a concentrated bundle, like shock wave from an aeroplane flying at

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subsonic speed

sonic speed

super sonic speed

any one of them

While describing the motion of a simple pendulum, the frictional effects are

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taken into account

completely ignored

partially ignored

none of them

When a mass 'm' is pulled slowly, the spring stretches by an amount x_o, then the work done will be

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W=Kx_o

W=1/2Kx_o

W=1/2Kx²_o

W=4Kx_o

The example of mechanical wave is

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waves in ropes

waves on water surface

waves in air

all of them

Example of progressive wave is

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transverse waves

longitudinal waves

both of them

none of them

Time period of simple pendulum is independent of

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length

mass

acceleration due to gravity

none of them

The weight 'mg' of the bob is resolved into

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one component

two components

three components

four components

The waves produced in a microwave oven have frequency

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2450 Hz

2450 K Hz

2450 M Hz

2450 G Hz

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