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A standing tuning fork of frequency f is...

A standing tuning fork of frequency `f` is used to find the velocity of sound in air by resonance column appartus. The difference two resonating lengths is `1.0 m`. Then the velocity of sound in air is

A

` f m//s`

B

`2 f m//s`

C

`f//2 m//s`

D

`3 f m//s`

Text Solution

Verified by Experts

The correct Answer is:
B
`v = n lambda`
`= 2 n(l_(1) - l_(2)) = 2 f xx 1 = 2 f m//s`
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CENGAGE PHYSICS-SUPERPOSITION AND STANDING WAVES-Single Correct
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