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The least count of a stop watch is (1//5...

The least count of a stop watch is `(1//5)s`. The time 20 oscillations of a pendulum is measured to be `25 s`. The maximum percentage error in this measurement is

A

`0.1%`

B

`0.8%`

C

`1.8%`

D

0.08

Text Solution

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The correct Answer is:
B
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