Question

the pitch of a screw gauge is 1 mm and there are 100 divisions on the circular scale. in measuring the diameter of a sphere there are six divisions on the linear scale and forty divisions on circular scale coincides with the reference line. what is the diameter of the sphere??
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Answer 1

Answer:

I'm sorry but i donno the answer.....

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Answer 2

Least count of the screw gauge is L.C= pitch / number of circular  divisions =1/100=0.01mm

Linear scale reading (LSR) =6×1mm=6mm

Circular scale reading (CSR) =40

Diameter of the sphere =LSR+(CSR×L.C)=6+(40×0.01)=6.4mm​