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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

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A spherometer has 100 equal divisions marked along the periphery of its disc and one full rotation of the disc advances on the main scale by

0.01 \mathrm{~cm}

. The least count of this system is

View answer and explanation

Correct option: B

10^{-4} \mathrm{~cm}

Option B (

10^{-4} \mathrm{~cm}

) is correct because the least count is calculated by dividing the main scale division by the number of divisions on the circular scale.

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