Question

When we oscillate one pendulum,why does the second pendulum pick up the osciilations and why does the first pendulum come at rest and vice versa​

Answer 1

Answer:

Actually it is transfer of motion of one pendulum to other that's why they both rise to same height .

Answer 2

Explanation:

Since the two pendulums have the same length, the pulls of the first pendulum on the second occur exactly at the natural frequency of the second pendulum, so it (the second pendulum) begins to swing too.