Wave Mechanics Question 873
Question: The intensity of sound increases at night due to
[CPMT 2000]
Options:
A) Increase in density of air
B) Decreases in density of air
C) Low temperature
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
We know that at night amount of carbon dioxide in atmosphere increases which raises the density of atmosphere. Since intensity is directly proportional to density, intensity of sound is more at night.
BETA
