PH-1769
Parallax and zero errors
Physics · Secondary 4 · Easy · Parallax and zero errors
A vernier caliper with a zero error of "+0.02 cm" is used to measure the outer diameter of a metal rod. The scale reading when the rod is measured is "2.38 cm". What is the actual diameter of the rod?
- 2.34 cm
- 2.36 cm
- 2.38 cm
- 2.40 cm
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