At a temperature of 
and a pressure of 
, the speed of sound in a gas is 
. The radius of each gas molecule is 
. The frequency of sound at which the wavelength of sound wave in the gas becomes equal to the mean free path of the gas molecules is (Boltzmann constant 
.)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Given
Temperature of gas 
;
Pressure of gas 
,
Sound, 
Diameter of gas molecule, 
or radius
Mean free path (r) is given by
Substituting the respective values, we get
Hence, the correct option is
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