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In a vernier calliper, the main scale reads in millimetres with a least count of 0.1 mm. Ten divisions on the vemier correspond to nine divisions of t

Question

In a vernier calliper, the main scale reads in millimetres with a least count of 0.1 mm. Ten divisions on the vemier correspond to nine divisions of the main scale. Determine the least count of the calliper.

0.001 mm

1 mm

0.1mm

0.01 mm

Solution

Correct option is D

The least count of a Vernier caliper is the smallest measurement that can be accurately read using the instrument. It is calculated using the formula: