Physics 9702 · AS & A Level · Progressive waves

Progressive waves — practice question

Each of four cathode-ray oscilloscope (CRO) screens shows a waveform. The screen and time-base setting for each CRO are given. Which screens display waveforms with the same frequency?

  • A1 and 2
  • B1 and 3
  • C1 and 4
  • D2 and 3

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