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In a screw gauge, the main scale has div...

In a screw gauge, the main scale has divisions in millimetre and circular scale has `50` divisions. The least count of screw gauge is

A

0.50 mm

B

0.002 mm

C

0.02 mm

D

0.05 mm

Text Solution

Verified by Experts

The correct Answer is:
C
Least count `=("Thread difference")/("Number of divisions on head scale")`
`=(1)/(50)=0.02mm`
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