The smallest division on the main scale of a vernier callipers is

PHYSICS · Multi-part · CBSE · Physics · Units and Measurements · Units and Measurements

Problem

1\,\text{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\,\text{cm}

and

10.3\,\text{cm}

, and the third vernier division coincides with a main-scale division. (a) Determine the least count of the callipers. (b) Find the length of the line.

Related theory

Measuring Instruments
Measurement of length
SI units

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