wave_mechanics assertion_and_reason Question 4
Assertion : The velocity of sound increases with increase in humidity. Reason : Velocity of sound depends upon the medium.
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason are both false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: C
Solution:
Velocity of sound in gas medium is $ v=\sqrt{\frac{K}{\rho }} $
$ =\sqrt{\frac{\gamma p}{\rho }} $ g is the ratio of its principal heat capacities $ (C _{P}/C _{v}) $ .
For moist air r is greater than that for dry air and g is slightly less.
\ velocity of sound increases with increase in humidity.
BETA
