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Physics (AS & A Level) · May / June 2020 · Paper 11 · Question 4

9702Progressive waves

A cathode-ray oscilloscope displays a square wave, as shown. The time-base setting is 0.20 ms per division. What is the frequency of the square wave?

  1. A0.83 Hz
  2. B830 Hz
  3. C1300 Hz
  4. D1700 Hz

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Correct answer: B. 830 Hz

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