Question # 1

Sound waves are

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Electromagnetic waves

Transverse waves

Compressional waves

Matter waves

the louder the sound, the greater will be its.

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Speed

Frequency

Amplitude

Wave length

The periodic variations of sound between maximum and minimum loudness are called.

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Doppler's effect

reflection

Laplace correction

Beats

The speed \velocity of sound is greatest in.

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Air

Steel

Ammonia

Water

the velocity of sound is maximum at 20 ^oC in

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Lead

Copper

Glass

Iron

Star moving towards the earth show

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Red shift

Blue shift

Green shift

Yellow shift

the example of mechanical waves is

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Water waves

Infrared waves

Radio waves

Ultraviolet waves

The speed of sound in air does not depend upon

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Temperature

Pressure

Density

Medium

The Newton's formula for the speed of sound in air is

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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

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Physics English Medium Fsc Part 1 Chapter 8 Online MCQs Test MCQs With Answers

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