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A simple pendulum completes 20 oscillati...

A simple pendulum completes 20 oscillations In 25 seconds. The time is measured,with a stop watch, of least cannot `0.1 S`. The error in the measurement of time is_________.

A

`1.6%`

B

`1.2%`

C

`0.8%`

D

`0.4%`

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