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Q.

The second overtone of an open pipe is in resonance with the first overtone of a closed pipe of length 2m. Length of the open pipe is -

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a

4 m

b

2 m

c

8 m

d

1 m

answer is A.

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Detailed Solution

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3V2l=3V4×2m   or   l=8m2=4m

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