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What is the minimum distance of the obst...

What is the minimum distance of the obstacle from the source of sound for hearing distinct echo ?

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17.2 m
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An echo is heard after 5 seconds of the production of sound which moves with a speed of 340 m/s. What is the distance of the mountain from the source of sound which produced the echo?

What is the minimum distance required to hear an echo?

Knowledge Check

  • To hear distinct echoes, the minimum distance of the obstacle from the source of sound must be ______ .

    A
    17.2 m
    B
    172 m
    C
    34.4 m
    D
    344 m

  • An echo will be heard if the minimum distance between the source of sound and the obstacle is ______.

    A
    1 m
    B
    10 m
    C
    15 m
    D
    17 m

  • The minimum distance to hear echo (speed of sound in air is 340 m//s )

    A
    `15 m`
    B
    `16 m`
    C
    `17 m`
    D
    `18 m`

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    What is the minimum distance required to hear an echo, when the speed of sound in air is 340 ms^(-1) ?

    An echo will be heard if the minimum distance beteeen the source of sound and obstacle is

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