RE-NEET 2024 Physics Screw Gauge MCQ Question
The pitch of an error free screw gauge is 1 mm and there are 100 divisions on the circular scale. While measuring the diameter of a thick wire, the pitch scale reads 1 mm and division on the circular scale coincides with the reference line. The diameter of the wire is:
1.63 cm
0.163 cm
0.163 m
1.63 m
Correct Answer
Detailed Explanation
The diameter is calculated as (pitch scale reading) + (circular scale reading × least count). Here, it is 1 mm + 0.63 mm = 1.63 mm = 0.163 cm.
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