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Physics (AS & A Level) · May / June 2018 · Paper 12 · Question 23

9702Progressive waves

The diagram shows the screen of a cathode-ray oscilloscope (c.r.o.) displaying a wave. The time-base of the c.r.o. is set at 10 ms / division. What is the frequency of the wave?

  1. A0.24 Hz
  2. B4.2 Hz
  3. C12 Hz
  4. D24 Hz

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Correct answer: D. 24 Hz

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