Question
simple pendulum has a bob suspended by aninextensible thread of length 1 metre from a pointA of suspension. At the extreme position ofoscillation, the thread is suddenly caught byapeg at a point B distant (1/4) m from A and thebob begins to oscillate in the new condition. Thechange in frequency of oscillation of the pendulumis approximately given by (g 10 m/s2)10Hz4/1010HzHz