Physics-
General
Easy
Question
A ball is suspended by a thread of length l at the point O on the wall, forming a small angle 
with the vertical (figure) Then the thread with the ball was deviated through 2 and set free. Assuming the collision of the ball against the wall to be perfectly elastic, find the oscillation period of such a pendulum.
- None
The correct answer is:
Time taken from equilibrium to 
is 
Total time =
Time period = 
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