vernier callipers has 10 divisions on the vernier scale. one centimetre on main scale is divided into 20 equal parts. find the least count of the vernier
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Width of each division =1 cm×
10
1
=0.1 cm
Least count of the vernier is equal to the
10
10−8
times the value of each division.
⟹ Least count =
10
2
×0.1 cm=0.02 cm
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