Physics · Units and Measurements
A screw gauge has 50 divisions on its circular scale. Prior to use, the zero of the circular scale is 4 divisions ahead of the pitch scale reference line. Upon one complete rotation of the circular scale, a displacement of 0.5 mm is noticed on the pitch scale. The nature of the zero error and the least count of the screw gauge are respectively:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Positive, 0.01 mm✓
- 2Negative, 0.01 mm
- 3Positive, 0.05 mm
- 4Negative, 0.02 mm
Correct answer
Positive, 0.01 mm
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