Question

8. Which one of the following statements is not correct?

• A. The velocity of sound in air increases with the increase of temperature
• B. The velocity of sound in air is independent of pressure
• C. The velocity of sound in air decreases as the humidity increases
• D. The velocity of sound in air is not affected by the change in amplitude and frequency.

Answer 1

The correct option is C The velocity of sound in air decreases as the humidity increases

The sound travels faster in moist air than in the dry air. As, speed increases which is proportional to the amount of moisture in there