NEET Physics Screw Gauge MCQ Question
Which of the following statements about the screw gauge is correct?
The screw gauge can measure lengths with an accuracy up to 0.01 mm.
The circular scale on the screw gauge has 50 divisions.
The zero error occurs when the linear and circular scales read zero simultaneously.
The screw gauge is less precise than a Vernier caliper for measuring diameter.
Correct Answer
Detailed Explanation
The screw gauge is mentioned to measure lengths with an accuracy of up to 0.01 mm, indicating its higher precision compared to a Vernier caliper. The circular scale actually has 100 divisions, and zero error occurs when the scales do not coincide at zero, contradicting options B and C. Also, the screw gauge is noted to have greater precision than a Vernier caliper, making option D incorrect.
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