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Question

Which of the following are required for sound propagation?

A
Medium
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B
Source
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C
Receiver
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D
None of the above.
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Solution

The correct options are
A Medium
B Source
Sound emanates from a source, propagates through a medium and finally reaches the receiver where it is heard. Receiver just receives the sound and processes it, and has no role in sound propagation. Sound producing source and a medium is necessary for propagation of sound.

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