Physics (AS & A Level) · May / June 2021 · Paper 11 · Question 5
A micrometer screw gauge is used to measure the diameter of a wire. The reading on the micrometer with the jaws closed is (–0.05 ± 0.02) mm. The reading with the wire in position between the two jaws is (+1.03 ± 0.02) mm. What is the diameter of the wire?
- A(0.98 ± 0.02) mm
- B(1.08 ± 0.02) mm
- C(0.98 ± 0.04) mm
- D(1.08 ± 0.04) mm
As printed in the paper
Show the answer
Correct answer: D. (1.08 ± 0.04) mm
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.