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A-LevelPhysicsWaves9702/12 · Oct/Nov 2018 · Q221 Mark

A progressive wave on a wire has a frequency of 10 Hz. Two points on the wire, separated by a distance of 0.25 m, have a phase difference of 22.5°. What is the maximum speed of the wave?

A2.5 m s⁻¹

B10 m s⁻¹

C20 m s⁻¹

D40 m s⁻¹

✓ Correct answer

D: 40 m s⁻¹

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About this question

Topic: Waves, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2018 Paper 1 Variant 2, question 22.

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