The time period of a pendulum clock is –
- A1 second
- B2 seconds
- C1 minute
- D1 hour
- ENone of the above/More than one of the above
Show answer and explanation
Correct answer: (b) 2 seconds
Explanation
A pendulum clock uses a seconds pendulum: each swing from one side to the other takes 1 second, so one full oscillation, its time period, is 2 seconds.
Its length is about 1 metre (about 99.4 cm where g = 9.8 m/s²).