Question

a pendulum vibrates 30 times a minute .calculated the frequency and time period of sound wave

Answer 1

Answer :

The time period is 2 sec and frequency is 0.5 Hz.

Step-by-step explanation :

Time Period -

Time period is the time needed for a complete cycle of vibration to pass through a point. It is represented by $T$.

Frequency -

It is the number of occurrences of an event which repeats per unit of time. It is represented by $\nu$ .

Calculating time period -

$\implies \frac{60}{30}$

$\implies 2$ seconds

Calculating frequency -

$\implies \frac{1}{T}$

$\implies \frac{1}{2}$

$\implies 0.5$ Hertz

Answer 2

Answer -

Time Period = 60/30

==> 2 sec

Frequency = 1/t

==> 1/2

==> 0.5 Hz