Question

A pendulum oscillates 40 times in 4 seconds. Calculate its (i) time period and

(ii) frequency. Can we hear the sound produced by the oscillation of this pendulum? Give

reason for your answer.​

Answer 1

Answer:

No of Oscillations $(O)$ = $40$

time(t) = $4$ $seconds$

$ii)$ Freequency = $\frac{O}{t}$ = $\frac{40}{4}$ = $10$ $Hz$

$i)$Time Period $(T)$ = $\frac{1}{f}$ = $\frac{1}{10}$ = $0.1$ $seconds$

No; The frequency of vibrations produced by a pendulum does not fall under the human ear's audible range, so we do not hear the sound produced due to these vibrations.