Physics 9702 · AS & A Level · Physical quantities

Physical quantities — practice question

The graph illustrates how displacement changes with distance for two progressive waves X and Y of the same type travelling in the same medium. The intensity of wave X is $I$. What is the intensity of wave Y?

  • A$0.28I$
  • B$0.53I$
  • C$1.9I$
  • D$3.5I$

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