MHT CET Physics question
A ball suspended by a thread of length , at a point O on the wall, forms a small angle with the vertical. Then the thread with the ball was deviated through a small angle and set free. Assuming the collision of the ball with the wall as elastic, find the time period of oscillation of such as pendulum
Answer: (A)
Solution
The ball moves as and the elastic rebound at the wall (angle ) reverses the motion, so the period is twice the time from amplitude to ,
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