O-LevelPhysicsMeasurement5054/12 · Oct/Nov 2025 · Q11 Mark

A micrometer is used to measure the diameter of a piece of wire. [Figure 1.1] What is the reading shown on the micrometer?

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A7.25 mm

B7.75 mm

C10.25 mm

D25.77 mm

✓ Correct answer

B: 7.75 mm

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Topic: Measurement, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2025 Paper 1 Variant 2, question 1.

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