The least count of a stop watch is 1/5 second. The time of 20 oscilla – InterviewSolution

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1.	The least count of a stop watch is 1/5 second. The time of 20 oscillations of a pendulum is measured to be 25 seconds. The maximum percentage error in the measurement of time will be (1)0.1% (2)0.8% (3)1.8% (4)8%
Answer» The least count of a stop watch is 1/5 second. The time of 20 oscillations of a pendulum is measured to be 25 seconds. The maximum percentage error in the measurement of time will be (1)0.1% (2)0.8% (3)1.8% (4)8%

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