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In determination of velocity of sound in...

In determination of velocity of sound in air using resonance column tube, radius of cylindrical tube is 1 cm and frequency of tuning fork is 256 Hz. If velocity of sound is 340 m/s then length of air column in the tube when first resonance occurs, is

A

33.2 cm

B

32.0 cm

C

32.6 cm

D

33.8 cm

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