Physics-Screw Gauge
NEET Physics Screw Gauge MCQ Question
Type: MCQ-diagram based-Easy-Class 12
In the diagram shown above, what precaution should be taken when using the screw gauge to measure the diameter of a wire?

A
Utilize the ratchet to avoid undue pressure on the wire.
B
Rotate the screw in both directions to ensure accuracy.
C
Apply maximum pressure to get a precise measurement.
D
Measure the wire at a single point for consistency.
Correct Answer
Option A
Detailed Explanation
The NCERT context advises using the ratchet arrangement to prevent undue pressure on the wire, which could alter its diameter.
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