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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

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Understanding +4 | -1

In a slide calliper,

n

divisions of vernier scale coincides with

(n-1)

divisions of main scale. The least count of the instrument is

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Correct option: A

\frac{1}{n} \mathrm{MSD}

Option A is correct because the least count is calculated as the difference between one main scale division and one vernier scale division.

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