What are the least count of vernier caliper? and explain this

Question

Accepted Answer

The least count of vernier caliper is the smallest measurement that can be read on the scale.

The least count is determined by the number of divisions on the vernier scale and the main scale.
It is usually 0.02 mm or 0.001 inch for a standard vernier caliper.
The least count can be calculated using the formula: Least count = (1 main scale division) / (number of divisions on the vernier scale).
For example, if the main scale has 10 divisions and the vernier scale has 20 divisions, the least count would be 0.5 mm / 20 = 0.025 mm.
The least count is important for accurate measurements and should be taken into consideration when using a vernier caliper.

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