Question

The swing in a pendulum gradually decreases with time. However, even then it is regarded as a reliable time keeping device. Why?​

Answer 1

The swing of a simple pendulum is dependent on time. As time increases, the swing of pendulum decreases and eventually becomes zero. If the swing does not have any motion then also period of swing will remain same as before. Hence for this reason pendulum is regarded as reliable time keeping device.

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Answer 2

Answer:

The swing of a simple pendulum is dependent on time. As time increases, the swing of pendulum decreases and eventually becomes zero. If the swing does not have any motion then also period of swing will remain same as before. Hence for this reason pendulum is regarded as reliable time keeping device