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JEE PHYSICS MCQ: UNITS & MEASUREMENTS

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One centimetre on the main scale of a vernier callipers is divided into 10 equal parts. If 10 divisions of vernier coincide with 8 small divisions of the main scale, the least count of vernier callipers is

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Correct option: B

0.02 cm

Option B (0.02 cm) is correct because the least count is calculated by finding the difference between one main scale division and one vernier scale division.

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