Question

How pitch of a sound affect velocity of sound in air?

Answer 1

hey ,

we know that , pitch is vibration (occilation) per unit time .

Molecules at higher temperatures have more energy, thus they can vibrate faster because rise in temperature causes rise in kinetic energy .. Since the molecules vibrate faster in summer so, sound waves travels faster in summer...

During winter kinetic energy get decrease as temperature decreases , so vibration of molecules is less and sound wave get slower than in summer......

hope u understand.........