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Screw Gauge

A screw gauge...

Question

A screw gauge has some zero error. Least count of this gauge is 0.01mm. 95th division of cap scale coincides with reference line when the gap is closed. What is the zero correction for this instrument ?

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It is found that for a screw gauge, the $5^{t h}$ division of the head scale coincides with the pitch scale axis and the zero of the head scale lie below the pitch scale axis. The least count of the screw gauge is 0.01 mm. What is the zero correction?

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