Question

a wire radius is measured using a screw gauge with error value 88 division whose pitch scale reads 2mm and the head scale coincides at 74 division​

Answer 1

Answer:

here's ur answer..

L.C. of the screw gauge =NumberofdivisionsoncircularscalePitch=1001=0.01mm

Given : Main scale reading =1 mm

Circular scale reading =0.01×47=0.47

∴ Diameter of wire = Total reading =1.47mm=0.147cm

Curved surface area = π×dl=π×(0.147)(5.6)=2.586≈2.6cm2

hope it helps..uh..

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