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Usually, what is the least count of a screw gauge?

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in Physics – Class 11 by (74.2k points)
Usually, what is the least count of a screw gauge?

(a) 0.01 cm

(b) 0.001 cm

(c) 0.1 cm

(d) 1 mm

I had been asked this question during a job interview.

Origin of the question is Measurement of Length topic in division Units and Measurements of Physics – Class 11

1 Answer

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Best answer
Correct option is (b) 0.001 cm

Explanation: Usually the least count of a screw gauge is 0.001 cm or 0.01 mm. For more accurate results one might use a micrometer.

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