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Q.

An open organ pipe sounds a fundamental note of frequency 330 Hz. If the speed in air is 330 m/s then the length of the pipe is nearly

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a

0.75 m

b

0.50 m

c

0.25 m

answer is B.

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Detailed Solution

In open pipes two antinodes are turned at the two ends of the pipe.
So, length of the pipe l=λ2
∴l=12×Vn=12×330330=0.50m

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