Physics 0625 · IGCSE · General properties of waves

General properties of waves — practice question

Light waves are sent through an opening. The diagrams illustrate two possible results. Which row gives the correct answer?

  • Athe effect on the wave as it passes through the gap: speed changes; diagram after it has passed through the gap: diagram 1 is correct
  • Bthe effect on the wave as it passes through the gap: speed changes; diagram after it has passed through the gap: diagram 2 is correct
  • Cthe effect on the wave as it passes through the gap: speed remains constant; diagram after it has passed through the gap: diagram 1 is correct
  • Dthe effect on the wave as it passes through the gap: speed remains constant; diagram after it has passed through the gap: diagram 2 is correct

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