QuestionPhysics / oscillations
Which one of the following statements is true regarding the time period (T) of oscillation of a simple pendulum?
- (a) T increases with increase in length of the pendulum
- (b) T depends on the mass of the pendulum bob
- (c) T decreases with increase in length of the pendulum
- (d) T is independent of the length of the pendulum
Answer: (a) T increases with increase in length of the pendulum
T = 2π√(l/g): T ∝ √l, so T increases with length. It is independent of the mass of the bob (and of amplitude, for small swings).