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To hear an echo, the total distance cove...

To hear an echo, the total distance covered by sound from the point of generation to the reflecting surface and back should be atleast ______

A

36 m

B

17.2 m

C

34.4 m

D

19 m

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TARGET PUBLICATION-Sound-Exercise
  1. The superposition is the characteristic of

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  2. The energy in the superposition of waves

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  3. To hear an echo, the total distance covered by sound from the point of...

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  4. A note is

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  5. Loudness of the sound depends upon

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  6. Loudness can be increased by

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  7. Every musical sound can be regarded as combination of

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  8. Quality of a musical note depends on

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  9. Pitch of a note depends upon

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  10. The apparent change in frequency of a sounding source and observer in ...

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  11. Doppler effect is not applicable

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  12. If the distance between the observer and source decreases with time, t...

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  13. A boy moves away from a steady source of sound at a constant speed. Th...

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  14. Assertion: The whistle of an approaching engine appears to be shriller...

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  15. Assertion: There will be no Doppler effect, when both the source and l...

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  16. Doppler’s effect for light differs from Doppler’s effect for sound, be...

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  17. A source of sound when moves towards a stationary observer, then frequ...

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  18. An observer is standing on a railway platfonn. He hears the whistle of...

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  19. A source of sound and a listener are both moving in the same direction...

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  20. The property that distinguishes longitudinal waves from transverse wav...

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