On six complete rotations, the screw gau...

On six complete rotations, the screw gauge moves by 3 mm on the main scale. If there are 50 divisions on the circular scale the least count of the screw gauge is

0.01 cm

0.02 mm

0.001 mm

0.001 cm

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Verified by Experts

The correct Answer is:

Pitch `=3/6 = 0.5 mm`
L.C.
`(0.5" "mm)/50 = 1/100 mm = 0.01 mm`
`= 0.001 cm`

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