JEE PHYSICS MCQ: UNITS & MEASUREMENTS

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Analyzing +4 | -1

Which of the following is the most accurate instrument for measuring length?

View answer and explanation

Correct option: D

A screw gauge of least count

0.001 {~mm}

Option D (A screw gauge of least count

0.001 {~mm}

) is correct because the instrument with the smallest least count provides the most accurate measurement.

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