Wave Mechanics Question 82
Question: If vm is the velocity of sound in moist air, vd is the velocity of sound in dry air, under identical conditions of pressure and temperature
[KCET 2002, 03]
Options:
A) vm > vd
B) vm < vd
C) vm = vd
D) vmvd = 1
Show Answer
Answer:
Correct Answer: A
Solution:
The density of moist air (i.e. air mixed with water vapours) is less than the density of dry air Hence from $ v=\sqrt{\frac{\gamma P}{\rho }} $
Therefore $ {v _{moist,air}}>{v _{dry,air}} $
BETA
