A-LevelPhysicsSuperposition9702/12 · May/June 2019 · Q251 Mark

In an experiment to determine the wavelength of sound in air, a stationary wave is set up in an air column. The distance between a node and an adjacent antinode is L. What is the wavelength of the sound?

A(1/2)L

C2L

D4L

✓ Correct answer

D: 4L

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Topic: Superposition, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, May/June 2019 Paper 1 Variant 2, question 25.

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