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Physics · May / June 2020 · Paper 12 · Question 30

5054General properties of waves

A vibrator produces 12 wavelengths on the surface of water in 10 s. The spacing between the first crest and the third crest is 60 cm. What is the speed of the wave?

  1. A24 cm / s
  2. B25 cm / s
  3. C36 cm / s
  4. D72 cm / s

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Correct answer: C. 36 cm / s

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