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Subject :Physics    Class : Class 6

If the same motion occurs again and again, it is said to be repetitive motion. Repetitive motion that repeats itself at regular intervals of time is called periodic motion. A pendulum undergoes periodic motion. The time taken by a pendulum to complete its one oscillation is known as its time period. Frequency of a pendulum is defined as the number of oscillations completed in 1 second.
If the time taken by the pendulum from C to A is 4 s, then the time taken by it to complete its one oscillation is

A 8 s
B 12 s
C 16 s
D 4 s

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