Questions
A screw gauge have 250 equal divisions marked along the periphery of circular scale. If one full rotation gives advancement of 0.625 cm, the least count of the arrangement is
detailed solution
Correct option is C
Least count =Pitch of the screwno.of divisions on circular scale =0.625250cm =0.0025 cm =2.5×10-3 cmTalk to our academic expert!
Similar Questions
The distance moved by the screw of a screw gauge is in four rotations and there are 50 divisions on its cap. When nothing is put between its jaws, 20th division of circular scale coincides with reference line and zero of linear scale is hidden from circular scale when two jaws touch each other or zero of circular scale is lying above the reference line. When plate is placed between the jaws, main scale reads 2 divisions and circular scale reads 20 divisions. Thickness of plate is
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