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An observer moves towards a stationary source of sound, with a velocity one-fifth of the velocity of sound. What is the percentage increase in the apparent frequency?

A

zero

B

`0 . 5%`

C

0.05

D

0.2

Text Solution

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The correct Answer is:
A
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An observer moves towards a stationary source of sound with a velocity one fifth of velocity of sound. What is the \% increase in apparent frequency ?

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Knowledge Check

  • An observer is moving towards the stationary source of sound, then

    A
    Apparent frequency will be less than the real frequency
    B
    Apparent frequency will be greater than the real frequency
    C
    Apparent frequency will be equal to real frequency
    D
    Only the quality of sound will change

  • If an observer moves towards a stationary source of sound with a velocity of one tenth the velocity of sound, then the apparent increase in frequency will be

    A
    0.01
    B
    0.05
    C
    0.1
    D
    `0.1`%

  • When an observer moves away from a stationary source of sound, the apparent pitch will

    A
    decrease
    B
    remain constant
    C
    increase
    D
    become infinite

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