AIIMS 2014 Physics Sound MCQ Question
Assertion Sound would travel faster on a hot summer day than on cold winter day. Reason Velocity of sound is directly proportional to the square of its absolute temperature.
If both the assertion and reason are true and reason explains the assertion.
If both the assertion and reason are true but reason does not explain the assertion.
If assertion is true but reason false
If assertion is false but reason is true
Correct Answer
Detailed Explanation
The correct answer is A because both the assertion and reason are true, and the reason directly explains the assertion. Sound travels faster on a hot summer day due to the increased kinetic energy of air molecules, which is a result of higher absolute temperature; this aligns with the principle that the velocity of sound is directly proportional to the square root of the absolute temperature.
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