Student measure the diameter of a small skill for using a screw coach of least count 0.001 centimetre the main scale reading is 5 millimetres and zero of a circular scale division coincide with 25 division of the lesson syllabus of the screw god has zero error - - 0.0047 the correct diameter of the world is
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Reading of screw gauge
= MSR + VSR × LC + zero error
= 0.5cm + 25 × 0.001cm + 0.004cm
= 0.529cm
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