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Physics (AS & A Level) · Feb / March 2020 · Paper 12 · Question 25

9702Electromagnetic spectrum

What is the order of magnitude of the wavelengths of microwaves and X-rays?

  1. A10⁻⁶, 10³
  2. B10⁻², 10³
  3. C10⁻⁶, 10⁻¹⁰
  4. D10⁻², 10⁻¹⁰

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Correct answer: D. 10⁻², 10⁻¹⁰

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