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  1. Velocity of sound in air
    1. Increases with temperature
    2. Decreases with temperature
    3. Increases with pressure
    4. Is independent of pressure
    5. Is independent of temperature
    1. only 1 and 2 are true
    2. only 2 and 4 are true
    3. only 1 and 3 are true
    4. only 1 and 4 are true
Correct Option: D

NA


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