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Physics (AS & A Level) · Oct / Nov 2019 · Paper 13 · Question 23

9702Progressive waves

A cathode-ray oscilloscope (CRO) is used to display a wave of frequency 5.0 kHz. The display is shown. What is the time-base setting of the CRO?

  1. A10 µs cm–1
  2. B100 µs cm–1
  3. C10 ms cm–1
  4. D100 ms cm–1

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Correct answer: B. 100 µs cm–1

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