1. In the experiment, why is heavy bob with a small size used? 2. While oscillating, why must the amplitude of the pendulum be small? 3. What will be value of the period of a pendulum oscillating at the centre of the carth? 4. In an experiment, T.A. Regina had two pendula. One had a length of 2 meters, and the other one is longer. She sets them both swinging at the same time. After the 2-meter pendulum has completed 24 oscillations, the longer one has only completed 23. How long is the longer pendulum?

1. In the experiment, why is heavy bob with a small size used? 2. While oscillating, why must the amplitude of the pendulum be small? 3. What will be value of the period of a pendulum oscillating at the centre of the carth? 4. In an experiment, T.A. Regina had two pendula. One had a length of 2 meters, and the other one is longer. She sets them both swinging at the same time. After the 2-meter pendulum has completed 24 oscillations, the longer one has only completed 23. How long is the longer pendulum?