Question

A pendulum whose time - period is two seconds is known as a second' s pendulum. The length of a second' s pendulum, where g= 9.8 m/s square is 99.2cm . It's frequency is n=1/2 Hz= 0.5 Hz​

Answer 1

Answer:

A seconds pendulum is a pendulum whose period is precisely two seconds; one second for a swing in one direction and one second for the return swing, a frequency of 0.5 Hz.

Step-by-step explanation:

please mark brainlist

Answer 2

Step-by-step explanation:

your answer in attachment