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The least count of a stop watch is 0.2 s...

The least count of a stop watch is 0.2 s, The time of 20 oscillations of a pendulum is measured to be 25s. The percentage error in the time period is

A

`0.1%`

B

`0.8%`

C

`1.8%`

D

`8%`

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AAKASH INSTITUTE-UNITS AND MEASUREMENTS-ASSIGNMENT SECTION B Objective (One option is correct )
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  6. In an experiment to measure the diameter of a wire using a screw gauge...

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  8. If speed of light is 3.00xx10^8 m/s and 1 year =365.25 days, then 1 li...

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  9. A wire has a mass (0.3+-0.003)g, radius (0.5+-0.005)mm and length (6+-...

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