Which of the following has the shortest wavelength?

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RRB NTPC CBT 2 Level -4 Official paper (Held On: 10 May 2022 Shift 1)
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  1. Visible rays
  2. Gamma rays
  3. Infrared rays
  4. X-rays

Answer (Detailed Solution Below)

Option 2 : Gamma rays
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RRB NTPC CBT-I Official Paper (Held On: 4 Jan 2021 Shift 1)
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Detailed Solution

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The correct answer is Gamma Rays.

Key Points

  • Gamma rays have the shortest wavelength and highest frequency (energy) in the electromagnetic spectrum.
  • They are electromagnetic waves with wavelengths in the range of 10-12m and frequencies around 1020- 1024 Hz.
  • They have a high penetrating power.
  • They are a result of decaying radioactive material and can also be found in outer space.
  • They are used in medical applications for sterilisation of equipment and cancer treatment.

Additional Information

  •  Other radiations in the Electromagnetic spectrum are:

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