Question

A vernier callipers has its main scale graduated in
mm and 10 divisions on its vernier scale are equal
in length to 9 mm. When the two jaws are in contact,
the zero of vernier scale is ahead of zero of main
scale and 3rd division of vernier scale coincides with
a main scale division. Find : (i) the least count and
(ii) the zero error of the vernier callipers​

Answer 1

Answer:

The least count of the verneir calipers is -5

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