Physics 0625 · IGCSE · Electromagnetic spectrum

Electromagnetic spectrum — practice question

Which statement concerning electromagnetic waves is incorrect?

  • AThey travel at $3 \times 10^8 \, \text{m s}^{-1}$ in a vacuum.
  • BThey transfer energy.
  • CThey travel at $340 \, \text{m s}^{-1}$ in air.
  • DThey are transverse waves.

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