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In a screw gauge, 5 complete rotations o...

In a screw gauge, 5 complete rotations of circular scale give 1.5 mm reading on pitch scale. Consider circular scale has 50 divisions. Least count of the screw gauge is

A

0.006 mm

B

0.003 mm

C

0.015 mm

D

0.03 mm

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The correct Answer is:
A
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