Question

19.
An organ pipe of length open at both ends is found to vibrate in its first harmonic when sounded with a tuning fork of 480 Hz. What
should be the length of a pipe closed at one
end, so that it also vibrates in its first
harmonic wit
h the same tuning fork?


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Answer 1

Answer:

Hey mate here is your answer.

✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡

Explanation:

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For open organ pipe, frequency of first,

harmonic, v/2l=480 Hz,        --- 1,

For pipe closed at one end, frequency of first, harmonic,v/4l=480 Hz,        ---2,

v/4l=v/2l,

4l=2l or l,

= 2l/4

=l/2.

Hope it helps.✔✔✔

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