Question

An organ pipe P, closed at one end vibrating in its first overtone and another pipe P2 open at both ends
vibrating in its third overtone are in resonance with a given tuning fork. The ratio of lengths of P1 and
P2 is:
(A) 8:3
(B) 4:3
(C) 3:8
(D) 3:4​

Answer 1

Answer:

First overtone of Close organ pipe=3v/4l

Third ovetone is of Open organ pipe is =4v/2l

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