Question

A sound wave with frequency 250 Hz is played for 2 minutes. Calculate the time period and the number of vibrations that will be obtained. Will you be able to hear this sound?​

Answer 1

Answer:

Given frequency v=250Hz

thus , the number of vibrations of the source of sound in one second =250

Therefore no. of vibrations in one minute =250×60=15000

The time period , T=

v

1

=

250

1

T=0.004 second.