Question

Out of the following the most accurate instrument is

Answer 1

Answer:

A . A screw gauge of least count 0.001 mm.

B . A screw gauge having pitch 1 mm and 50 divisions on circular scale.

C . A vernier callipers of least count 0.01 mm.

D . Vernier callipers having 20 divisions on the sliding scale (vernier scale) coinciding 19 divisions on the main millimetre scale.

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