A pendulum has time period T for small oscillations. An obstacle P is

1.	A pendulum has time period T for small oscillations. An obstacle P is situated below the point of suspension O at a distance 3l4. The pendulum is released from rest. Throughout the motion the moving string makes small angle with vertical. Time after which the pendulum returns back to its initial position is
Answer» A pendulum has time period $T$ for small oscillations. An obstacle $P$ is situated below the point of suspension $O$ at a distance $\frac{3 l}{4}$ . The pendulum is released from rest. Throughout the motion the moving string makes small angle with vertical. Time after which the pendulum returns back to its initial position is

A pendulum has time period T for small oscillations. An obstacle P is situated below the point of suspension O at a distance 3l4. The pendulum is released from rest. Throughout the motion the moving string makes small angle with vertical. Time after which the pendulum returns back to its initial position is

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A pendulum has time period $T$ for small oscillations. An obstacle $P$ is situated below the point of suspension $O$ at a distance $\frac{3 l}{4}$ . The pendulum is released from rest. Throughout the motion the moving string makes small angle with vertical. Time after which the pendulum returns back to its initial position is

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