ICSE Class 9 Physics Question 18 of 19

Propagation of Sound Waves — Question 14

Back to all questions
14
Question

Question 14

How does the speed of sound in air vary with temperature?

Answer

The speed of sound is directly proportional to the square root of temperature of the medium. It increases by about 0.61 m s-1 (or 61 cm per second) for each 1°C rise in temperature (provided that the rise in temperature is not very large).

i.e.,

Vt = V0 + 0.61t