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The diameter of a wire is measured by us...

The diameter of a wire is measured by using a screw gauge having least count `0.01mm`. If the diameter is found to be `0.20mm`, then the error in the cross-section of the wire will be

A

`5%`

B

`10%`

C

`1%`

D

`2.5%`

Text Solution

Verified by Experts

The correct Answer is:
B
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