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The grandparents and parents of two year...

The grandparents and parents of two year old girl are playing with her in a room. A sound source produces a 28 kHz sound. Who in the room is most likely to hear the sound?

Text Solution

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1) The two year old girl is able to hear the sound.
2) Children can hear sound of somewhat higher frequencies upto 30 kHz.
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Knowledge Check

  • (A): A person hears maximum sound at displacement anti node (or) pressure node. (B) : Two organ pipes of same length open at both ends produce sound of different pitch if their radii are different. (C): If oil of density higher than water is filled in place of water in a resonance tube, its frequency remain unchanged.

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    B
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    C
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    A
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    B
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    C
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