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Physics (AS & A Level) · Feb / March 2022 · Paper 12 · Question 20

9702Progressive waves

Which statement about progressive waves is correct?

  1. AThey are always transverse waves.
  2. BThey can exist in solids but not liquids.
  3. CThey decrease in frequency as their speed increases.
  4. DThey transfer energy away from their source.

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Correct answer: D. They transfer energy away from their source.

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