screw gauge 2

The whole length of the screw of screw gauge is 4 cm

this corresponds to 40 rotations of the screw

Also , the circlular scale is marked at every 1 degree.

Fidn the Pitch and the least count

2 Answers

Therefore Pitch = 4*10^-2 /40 = 1mm
L.C. = P/n
Therefore L.C. = 1mm/360
= 5 * 10^-6/18

LC = (4/100)/(40*360) metere

PITCH = LC*360 meter

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