Question

what is the use of simple pendulum

Answer 1

The period of swing of a simple gravity pendulum depends on its length, the local strength of gravity, and to a small extent on the maximum angle that the pendulum swings away from vertical, θ0, called the amplitude.

Hope this answer is helpful
✌️✌️✌️✌️✌️✌️✌️✌️✌️
Please mark as brainlist

Answer 2

your ans is here
Simple pendulum used in seismometers, which measure seismic activity caused by earthquakes and other movements of the Earth. Pendulums are also used in other scientific instruments. The pendulum is used in religious practices, in the form of a swinging incense burner.