Question

Difference between bar pendulum and kater's pendulum

Answer 1

here goes ur answer my dear friend.
The main difference between simplependulum and compound pendulum is that, in a simple pendulum, the distance between the centre of gravity of the suspended body and the axis of suspension is large compared to the dimensions of the suspended body whereas, in a compound pendulum, the dimensions of the suspended body are ...

Answer 2

A bar pendulum has fixed length and layers pendulum has a fixed time period