Physics (AS & A Level) · Feb / March 2020 · Paper 12 · Question 5
A micrometer is used to measure the diameters of two cylinders. diameter of first cylinder = (12.78 ± 0.02) mm diameter of second cylinder = (16.24 ± 0.03) mm The difference in the diameters is calculated. What is the uncertainty in this difference?
- A0.01 mm
- B0.02 mm
- C0.03 mm
- D0.05 mm
As printed in the paper
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Correct answer: D. 0.05 mm
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