The smallest division on main scale of a vernier callipers is $$1$$ mm and $$10$$ vernier divisions coincide with $$9$$ main scale divisions. While measuring the length of a line, the zero mark of the vernier scale lies between $$10.2$$ cm and $$10.3$$ cm and the third division of vernier scale coincides with a main scale division. Determine the least count of the callipers.

Question

The smallest division on main scale of a vernier callipers is $$1$$ mm and $$10$$ vernier divisions coincide with $$9$$ main scale divisions. While measuring the length of a line, the zero mark of the vernier scale lies between $$10.2$$ cm and $$10.3$$ cm and the third division of vernier scale coincides with a main scale division. Determine the least count of the callipers.

Infinity Learn · Accepted Answer

Least Count $$(LC)=$$ Smallest division on main scale  Number of divisions on vernier scale $$=110$$ $$mm=0.1$$ $$mm=0.01$$ cm

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