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Physics (AS & A Level) · Oct / Nov 2024 · Paper 12 · Question 25

9702Electromagnetic spectrum

An electromagnetic wave in free space has a frequency of 3.0 × 10^16 Hz. Which row gives the principal region of this wave and an example of an electromagnetic wave with a lower frequency?

  1. Ainfrared | visible light
  2. Binfrared | X-rays
  3. Cultraviolet | visible light
  4. Dultraviolet | X-rays

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Correct answer: C. ultraviolet | visible light

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