Question # 1

Who did give the correct formula for the speed of sound in air?

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Boyle

Laplace

Newton

Einstein

The distance between the consecutive nodes is

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Sound travel faster in

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CO2

H2

O2

He

Light waves are

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Longtail waves

Transvers waves

Stationary waves

Mechanical wave

Speed of sound in copper is

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38000 ms-1

3600 ms-1

3500 ms-1

3400 ms-1

Which of the following is mechanical wave

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Heat

Light

Sound

None of these

The speed of sound increases with the increase of in

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Pressure

Volume

Temperature

Density

Waves transport energy without transporting

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Matter

Force

Momentum

All of these

In sonar we use

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Sound waves

Ultrasound waves

Microwaves

Radio waves

When sound waves enter in different medium, the quantity that remains unchanged is.

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Intensity

Speed

Frequency

Wave length

In stationary waves, the particle velocity at nodes is

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Minimum

Maximum

Zero

Constant

the velocity of sound is maximum at 20 ^oC in

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Lead

Copper

Glass

Iron

The distance covered by wave in 1 sec is

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wavelength

Wave number

Wave speed

Frequency

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

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Density

Pressure

Temperature

Elasticity

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 order to produce beats, the two sound waves should have.

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The same amplitude

Slightly different amplitude

The same frequency

slightly different frequencies.

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

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Physics Fsc Part 1 Chapter 8 Online Test MCQs With Answers

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