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Physics (AS & A Level) · Oct / Nov 2018 · Paper 11 · Question 23

9702Progressive waves

The diagram shows the waveform of a signal displayed on a cathode-ray oscilloscope. The time-base is set at 5.0 ms per division. The Y-gain is set at 5.0 mV per division. What are the amplitude and the frequency of the signal?

  1. Aamplitude 10 mV, frequency 50 Hz
  2. Bamplitude 10 mV, frequency 100 Hz
  3. Camplitude 20 mV, frequency 50 Hz
  4. Damplitude 20 mV, frequency 100 Hz

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Correct answer: A. amplitude 10 mV, frequency 50 Hz

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