Physics-Screw Gauge

NEET Physics Screw Gauge MCQ Question

Type: MCQ-numerical-Medium-Class 12

A screw gauge is used to measure the diameter of a wire. The linear scale reading (M) is 5 mm and the circular scale reading (n) is 15 divisions. If the least count (L.C.) of the screw gauge is 0.01 mm, what is the measured diameter of the wire?

A

5.15 mm

B

5.05 mm

C

5.01 mm

D

5.10 mm

Correct Answer

Option A

Detailed Explanation

The measured diameter is calculated using the formula: Diameter = M + n × L.C. Thus, 5 mm + 15 × 0.01 mm = 5.15 mm.

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