JEE PHYSICS MCQ: UNITS & MEASUREMENTS

1 Medium

1 of 1

Application +4 | -1

The two full turns of circular scale of screw gauge cover a distance of

1 \mathrm{~mm}

on scale. The total division on circular scale is 50 further if found that screw gauge has a zero error of

-0.01 \mathrm{~mm}

. While measuring the diameter of thin wire a student notes the main scale reading of

2 \mathrm{~mm}

and the no of circular scale division in line with the main scale as 25. The diameter of wire is

View answer and explanation

Correct option: A

2.26 \mathrm{~mm}

Option A (

2.26 \mathrm{~mm}

) is correct because it is calculated using the formula for screw gauge reading, including zero error correction.

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