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A screw gauge has 50 circular scale divi...

A screw gauge has 50 circular scale divisions and a pitch of 0.1 cm. When this is used to measure the thickness of a plate the main scale reading is 0.2 cm and the circular scale reading is 35. What is the thickness of the plate?

Text Solution

Verified by Experts

Least count ( c ) for the screw gauge = `(0.1)/(50)` = 0.002 cm
So the thickness of the plate
t = 0.2 cm +35 `xx `0.002 cm = 0.27 cm
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