Wave Mechanics Question 635
Question: What is the effect of humidity on sound waves when humidity increases?
Options:
A) Speed of sound waves is more
B) Speed of sound waves is less
C) Speed of sound waves remains same
D) Speed of sound waves becomes zero
Show Answer
Answer:
Correct Answer: A
Solution:
[a] Velocity of sound $ =\sqrt{\frac{\gamma RT}{M}} $ When water vapour are present in air, average molecular weight of air decreases and hence velocity increases.
BETA
