Multiple choice

With rise in temperature, the velocity of sound

  1. decreases

  2. remains the same

  3. increases

  4. decreases and then increases
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The speed of sound in a gas is proportional to the square root of its absolute temperature. As temperature increases, the kinetic energy of the gas molecules increases, allowing them to transmit the sound vibration more quickly. Therefore, sound travels faster on a hot day than on a cold day.

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