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A screw gauge gives the following readin...

A screw gauge gives the following reading when used to mesure the diametre of a wire.
Main scale reading : `0`mm
Circular scale reading : `52` divisions
Given that `1`mm on main scale corresponds to `100` divisions of the circular scale. the diameter of wire from the above data is :

A

`0.052 cm `

B

`0.026 cm`

C

`0.005 cm`

D

`0.52 cm`

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The correct Answer is:
A
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