Question

9. In a pendulum has a time period of 3 s, then its frequency is :
a) 0.5 Hz
(b) 3 Hz
(c)3 s
(d
) 0.33 Hz​

Answer 1

Given :-

• time period = 3 seconds

To Find :-

• frequency ?

Solution :-

we know that,

$\boxed{ \bold{frequency = \frac{1}{time \: period} }}$

$\bold{ : \implies f = \frac{1}{3} } \: \: \: \: \: \: \: \: \: \: \: \\ \\ \bold{: \implies f = 0. \bar{33} \: hz}$

Hence, frequency of the pendulum is 0.33 heartz

so, option (d) is correct