Why is sound wave called a longitudinal ...

Why is sound wave called a longitudinal wave ?

Text Solution

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A sound wave is called a longitudinal wave as it travels in a medium in the form of compressions and rarefactions where the particles of the medium vibrate in a direction which is parallel to the direction of propagation of the sound wave.

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Knowledge Check

Why are sound waves called mechanical waves ?

A

Because they travel with the speed of light

B

Because they do not require any material medium for propagation

C

Because they need material medium for propagation

D

None of these

Which of the following are longitudinal waves ?

A

sound waves

B

radio waves

C

infrared waves

D

electromagnetic waves.

Assertion : Sound waves cannot be polarised. Reason : Sound waves are longitudinal in nature.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

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