A pendulum of length 10 c m is hanged by a wall making an angle 3 ° with vertical. It is swung to position B . Time period of pendulum will be

Question

A pendulum of length 10 c m is hanged by a wall making an angle 3 ° with vertical. It is swung to position B . Time period of pendulum will be, π 5 s, 2 π 15 s, π 6 s, subsequent motion will not be periodic

MARKS App · Accepted Answer

Let T = 2 π l g T = 2 π 0.1 10 = π 5 s Time taken by the pendulum in going from A to B = T 4 Time taken by the pendulum in going from B to C = T 12 ∴ The time period of the pendulum = 2 T 4 + T 12 = 2 T 3 = 2 3 . π 5 = 2 π 15 s

Search any question & find its solution

Looking for more such questions to practice?