Question

Find the thickness of a 1 rupee coin with the screw gauge, if the pitch scale reading is 1 mm, its head scale coincidence is 36 and the zero error is -0.03 mm.

please send me the correct Answer​

Answer 1

Answer:

Given, Pitch scale reading (PSR) = 1 mm

Head scale coincidence (HSC) = 68

Least count (LC) = 0.01 mm

Assuming no zero error, we get

Corrected Head scale coincidence (CHSC) = 68

Thickness of the coin = PSR+ (CHSC x LLC)

= 1+ (68 x 0.01) mm

1.68 mm