Question # 1

Waves transport energy without transporting

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Matter

Force

Momentum

All of these

Sound waves are

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Electromagnetic waves

Transverse waves

Compressional waves

Matter waves

The speed of sound increases with the increase of in

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Pressure

Volume

Temperature

Density

The speed of sound is greater in solids due to their high.

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Density

Pressure

Temperature

Elasticity

the example of mechanical waves is

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Water waves

Infrared waves

Radio waves

Ultraviolet waves

Sound wave can not be

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Reflected

Refracted

Diffracted

Polarized

Beats can be heard when difference of frequency is not more than.

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8 Hz

10 Hz

4 Hz

6 Hz

When the amplitude of a wave become double, its energy becomes

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One half

Two times

Three times

Four times

Increase in speed of sound for 1 ^oC rise in temperature is.

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0.61 ms-1

0.61 cms-1

61 ms-1

6.1 ms-1

A stationary waves is established din a string which vibrates in four segments at a frequency of 120 Hz, Its fundamental frequency is.

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15 Hz

30 HZ

60 Hz

480 Hz

Longitudinal waves do not exhibit

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Reflection

Refraction

Polarization

Diffraction

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 transverse waves the particles of medium vibrate

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Along the direction of wave

Opposite to direction of wave

Perpendicular to direction of wave

Slowly

Teh speed of sound in air is 340 m/s. If the pressure of air is doubled then the speed becomes.

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Double

Half

Four times

Remains same

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

The distance between two consecutive crests of troughs is called

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Time period

Wave length

Frequency

Displacement

According to Newton, sound travels in air under conditions of.

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Adiabatic

Isothermal

Isobaric

Isochoric

The distance between two consecutive trough is called.

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Displacement

Amplitude

Wave length

Wave front

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