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When a screw gauge is completely closed,...

When a screw gauge is completely closed, zero of circular scale is `6` divisions below the reference line of graduation. If least count of screw gauge is `0.001 cm`, the zero correction is

A

`-0.006cm`

B

`+0.006cm`

C

`-0.006mm`

D

`+0.006mm`

Text Solution

Verified by Experts

The correct Answer is:
A
Here zero error is positive `implies+0.006cm`
`:.` zero correction is `-0.006cm`
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