A ball is suspended by a thread of length l at the point O on an incline wall as shown. The inclination of the wall with the vertical is α.The thread is displaced through a small angle β away from the vertical and the ball is released. Find the period of oscillation of pendulum. Consider both cases a. `alpha gt beta` b. `alpha lt beta`Assuming that any impact between the wall and the ball is elastic.A. `2pisqrt((L)/(g))`B. `2pisqrt((L)/(g))[pi + 2 sin^(-1)(alpha/beta)]`C. `2pisqrt((L)/(g))[pi/2 + sin^(-1)(alpha/beta)]`D. None of the above

A ball is suspended by a thread of length l at the point O on an incli

1.	A ball is suspended by a thread of length l at the point O on an incline wall as shown. The inclination of the wall with the vertical is α.The thread is displaced through a small angle β away from the vertical and the ball is released. Find the period of oscillation of pendulum. Consider both cases a. `alpha gt beta` b. `alpha lt beta`Assuming that any impact between the wall and the ball is elastic.A. `2pisqrt((L)/(g))`B. `2pisqrt((L)/(g))[pi + 2 sin^(-1)(alpha/beta)]`C. `2pisqrt((L)/(g))[pi/2 + sin^(-1)(alpha/beta)]`D. None of the above
Answer» Correct Answer - A As `beta lt alpha` so `T = 2pisqrt((L)/(g))`

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