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Assume velocity of sound in air as 333.6...

Assume velocity of sound in air as 333.68 `ms^-1`. A hollow brass tube is placed vertically in a jar containing water. Air in the tube is vibrated by a tuning fork of frequency 338 Hz. Neglect end correction. Second resonance is obtained when the length of air column in the brass tube is

A

0.215 m

B

0.43 m

C

0.645 m

D

0.33 m

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