PH-515
Parallax and zero errors
Physics · Secondary 3 · Easy · Parallax and zero errors
A micrometer screw gauge has a zero error of . A student measures the diameter of a wire and obtains a reading of on the instrument. What is the actual diameter of the wire?
- 1.75 mm
- 1.81 mm
- 1.78 mm
- 1.73 mm
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