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Physics Hard FPSC Uploaded: 17 Aug 2026

Which of the following travels fastest in vacuum?

  • A Sound waves
  • B Light waves
  • C Seismic waves
  • D Water waves
Correct Answer: Option B — Light waves
Explanation:
Light waves, being electromagnetic radiation, travel at approximately 3 x 10^8 metres per second in a vacuum, far faster than mechanical wav...
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Submitted by: PaperMCQs
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