A-LevelPhysicsSuperposition9702/12 · Oct/Nov 2009 · Q241 Mark

The diagram shows a standing wave on a string. The standing wave has three nodes N₁, N₂ and N₃. [Figure 24.1] Which statement is correct?

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AAll points on the string vibrate in phase.

BAll points on the string vibrate with the same amplitude.

CPoints equidistant from N₂ vibrate with the same frequency and in phase.

DPoints equidistant from N₂ vibrate with the same frequency and the same amplitude.

✓ Correct answer

D: Points equidistant from N₂ vibrate with the same frequency and the same amplitude.

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Topic: Superposition, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2009 Paper 1 Variant 2, question 24.

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