Question

If the time period of a simple pendulum is increased by increasing its length then will its frequency be affected or will it remain the same? What is your conclusion?​

Answer 1

Answer:

See below.

Explanation:

The time period of a simple pendulum is given by,

$T=2\pi \sqrt {\dfrac {l}{g}}$

And the relation between frequency and time period is,

$f=\dfrac {1}{T}$

Hence, we can say that,

$f\propto \dfrac {1}{\sqrt {l}}$

Hence, on increasing the length, the frequency decreases.