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In a sample pendulum experiment, length ...

In a sample pendulum experiment, length is measured as `31.4cm` with an accuracy of `1mm`. The time for `100` ocscillations of pendulum is `112s` with an accuracy of `0.01s`. The percentage accuracy in `g` is

A

`1`

B

`2.8`

C

`1.3`

D

`2.1`

Text Solution

Verified by Experts

The correct Answer is:
D
`g = 4pi^(2) (l)/(T^(2)), (Delta g)/(g) xx 100 = (Delta l)/(l) xx 100 + (2Delta T)/(T) xx 100`
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