A note is produced when you blow air across the top of a test tube. Two students were asked about th

Question

A note is produced when you blow air across the top of a test tube. Two students were asked about the effect of blowing harder.

Student-A : The pitch of sound would increase.

Student-B : The intensity of sound would increase

Accepted Answer

Sol. When the air is blown harder, velocity of sound increases, hence intensity $\left( I = \frac{1}{2}\rho A^{2}\omega^{2}v \right)$

Question