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NDA 2 2025 GAT, question 71

Topic: Physics

Q71

Which one of the following radiations has longer wavelength ?

  1. (a) X-rays
  2. (b) Ultraviolet
  3. (c) Micro WaveCorrect answer
  4. (d) Infra-red

Solution.

Answer: (c) Micro Wave

  1. In order of increasing wavelength, the listed bands are X-rays, ultraviolet, infrared and microwaves.
  2. Therefore microwaves have the longest wavelength among these options.