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Two narrow organ pipes, one open (length...

Two narrow organ pipes, one open (length `l_(1)`) and the other cloed (length `l_(2)`) are sounded in their respective fundamental modes. The beat frequency heard is `5 Hz`. If now the pipes are sounded in their first overtones, then also the beat frequency heard is `5 Hz`. Then:

A

`(l_(1))/(l_(2))=1/2`

B

`(l_(1))/(l_(2))=1/1`

C

`(l_(1))/(l_(2))=3/2`

D

`(l_(1))/(l_(2))=2/3`

Text Solution

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The correct Answer is:
B, C
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