Assertion : Sound would travel faster on a not summer day than on a cold winter day,
Reason : Velocity of sound is directly proportional to the square of its absolute temperature.

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 both are false.

Answer

C

Explanation

The velocity of sound in a gas is directly proportional to the square root of its absolute temperature (as `v=sqrt((gammaRT)/(M))`). Since temperature of a hot day is more than cold winter day, therefore sound would travel faster in a hot summer day than on a cold winter day.