Velocity of sound in air I. increases with temperature II. decreases with temperature III. increases with…

Velocity of sound in air I. increases with temperature II. decreases with temperature III. increases with pressure IV. is independent of pressure V. is independent of temperature Choose the correct option.
  1. I and II are true
  2. I and III are true
  3. II and III are true
  4. I and IV are true

Solution

Speed of sound, $v \propto \sqrt{T}$ and it is independent of pressure.

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