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A screw gauge has 1.0mm pitch and 200 di...

A screw gauge has `1.0mm` pitch and `200` divisions on the ciruclar scale. The least count of the instrument is

A

`5xx10^(-3)mm`

B

`5xx10^(-4)mm`

C

`5xx10^(-2)mm`

D

`5xx10^(-5)mm`

Text Solution

Verified by Experts

The correct Answer is:
A
`LC=(1)/(200)`, `=(1)/(2)xx10^(-2)` `=5xx10^(-3)mm`
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