Physicshard · Past Paper
The speed of sound in air is 'V'. If the absolute temperature of the air is doubled, the new speed will be:
A2V
BV/2
CV * sqrt(2)
DV/sqrt(2)
✓ Correct Answer: C — V * sqrt(2)
The speed of sound in a gas is proportional to the square root of its absolute temperature (V ∝ sqrt(T)).
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