A-LevelPhysicsSuperposition9702/12 · Oct/Nov 2015 · Q301 Mark

To produce a stationary wave, two waves must travel in opposite directions through the same space. Which statement about the properties of the two waves must also be true?

AThe waves must have equal frequency, but a different speed and wavelength.

BThe waves must have equal speed, but a different wavelength and frequency.

CThe waves must have equal speed, frequency and wavelength.

DThe waves must have equal wavelength, but a different speed and frequency.

✓ Correct answer

C: The waves must have equal speed, frequency and wavelength.

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Topic: Superposition, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2015 Paper 1 Variant 2, question 30.

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