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Screw Gauge

a circular sc...

Question

a circular scale of screw gauge has 50 divisions and pitch is 0.5mm. it coincides at 25th division and is main scale reading is 2. find the diameter of the sphere.

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Solution

Dear student
Least count (LC) = pitch / number of divisions
LC = 0.5 mm/100
LC = 0.005mm or 0.0005cm
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