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How does the sound produced by a vibrati...

How does the sound produced by a vibrating object in a medium reach your ear ?

Text Solution

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Sound produced by a vibrating object reaches our ear through sound waves which propagate through the medium as a series of compressions and rarefactions.
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We have learnt that vibration is necessary for producing sound. Explain why the sound produced by every vibrating body cannot be heard by us?

Assertion (A) : The pitch of the sound produced by the vibrating string can be changed. Reason (R) : The pitch of the sound can be changed by changing the length, tension and thickness of the vibrating string.

Knowledge Check

  • The velocity of sound produced by a vibrating body varies -

    A
    directly as the sq . Root of density of the medium
    B
    inversely as the density of the medium
    C
    directly as the sq. root of frequency of the medium
    D
    inversely as the frequency of the medium

  • Assertion (A): The loudness of sound produced by the vibrating body can be increased. Reason (R): The loudness of sound by the vibrating body depends on the amplitude of vibration and also the surface area.

    A
    A and R are true and R is the correct explanation of A.
    B
    A and R are true, but R is not the correct explanation of A.
    C
    A is true but R is false.
    D
    Both A and R are false.

  • Assertion (A): The pitch of the sound produced by the vibrating string can be changed. Reason (R): The pitch of the sound can be changed by changing the length, tension and thickness of the vibrating string.

    A
    Both A and R are correct and R is the correct explanation of A.
    B
    Both A and R are correct but R is not the correct explanation of A.
    C
    A is correct and R is incorrect.
    D
    Both A and R are incorrect.