Explain the use of Screw gauge and Vernier caliper in mensuring smaller distances. (1.5.1-Screw gauge and Vernier caliper)
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The screw gauge is an instrument used for measuring accurately the dimensions of objects up to a maximum of about 50 mm. ... Vernier caliper: A vernier caliper is a versatile instrument for measuring the dimensions of an object namely the diameter of a hole, or a depth of a hole.
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