NEET 2021 Physics Screw Gauge MCQ Question
A screw gauge gives the following readings when used to measure the diameter of a wire Main scale reading : 0 mm Circular scale reading : 52 divisions Given that 1 mm on main scale corresponds to 100 divisions on the circular scale. The diameter of the wire from the above data is :
0.52 cm
0.026 cm
0.26 cm
0.052 cm
Correct Answer
Detailed Explanation
The diameter is calculated as (main scale reading + circular scale reading/100) mm = 0.052 cm.
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