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Physics Medium CSS FPSC PPSC Uploaded: 13 Jul 2026

Which formula correctly represents the relationship between frequency wavelength and speed of a wave?

  • A v equals f divided by wavelength
  • B v equals wavelength divided by f
  • C v equals f times wavelength
  • D f equals v times wavelength
Correct Answer: Option C — v equals f times wavelength
Explanation:
The wave equation states that wave speed v equals frequency f multiplied by wavelength lambda showing that for a given medium as frequency increases wavelength decreases proportionally.
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