Question

what fraction of time is measured with a STOP watch

Answer 1

Final. Answer :Maximum percentage error in time taken., = 0.8%

Answer 2

The least count of a stop watch can can vary. It can be either 0.25 sec, 0.5 sec or 1 sec. The stop watches used in school level, mainly the analogue stop watches have the least count of 0.5 sec or 1 sec. While the analogue stop watches used in colleges can have a least count of 0.25 sec. The digital stop watches in phones is more accurate and have a least count from 0.01sec to 0.001sec