1.

Two isolated open pipes, filled with a gas, of lengths 20 cm and 20.1 cm produces 5 beats/s when sounded together in their fundamental modes. The velocity of sound in the gas is:

A. 402 m/s
B. 330 m/s
C. 360 m/s
D. 420 m/s
Answer» B. 330 m/s


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