NEET2021Physics-Measurements

NEET 2021 Physics Screw Gauge MCQ Question

Type: MCQ-numerical-Easy-Class 11

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 :

A

0.52 cm

B

0.026 cm

C

0.26 cm

D

0.052 cm

Correct Answer

Option D

Detailed Explanation

The diameter is calculated as (main scale reading + circular scale reading/100) mm = 0.052 cm.

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