A tuning fork of frequency 500 Cycles/s is sounded on a resonance tube. The first and second resonance is obtained at 17 cm and 52 cm. the velocity of sound in $ms^{- 1}$ is

Question

Dr. Abubacker · Accepted Answer

(b) If the frequency of fork v, then speed of sound is given by
$v = 2v\left( l_{2} - l_{1} ight)$
Where$\ l_{1}$and$\ l_{2}$are length of air columns.
Given, v=500 cycles/s,
$l_{2} = 52cm = 52 	imes 10^{- 2}m\ $
$l_{1} = 17cm = 17 	imes 10^{- 2}m\ $
$	herefore v = 2 	imes 500(52 - 17) 	imes 10^{- 2}$
$\Longrightarrow v = 350ms^{- 1}$

Q. A tuning fork of frequency 500 Cycles/s is sounded on a resonance tube. The first and second resonance is obtained at 17 cm and 52 cm. the velocity of sound in $ms^{- 1}$ is

Explanation

Reviewed by Dr. Abubacker

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