May/June 2026 Paper 11

2026 · 40 questions · 40 parts · 40 marks

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26Wave Properties Wave BehaviourHard1 mark
A wave is incident on a surface of area placed perpendicular to the direction of travel of the wave.
The wave has amplitude and the power incident on the surface is .
The amplitude of the wave is increased to and the wave is now incident normally on a surface of area .
What is the power incident on the surface of area ?