Of the following which is different from the other?

  • A x-rays
  • B gamma-rays
  • C cathode rays
  • D ultra violet rays
  • E infrared rays
jamb 1978physics

The correct answer is C. cathode rays

Cathode rays are streams of electrons observed in vacuum tubes under high voltage.

They are not electromagnetic radiation like the other options (x-rays, gamma-rays, ultraviolet rays, and infrared rays), which are all forms of electromagnetic radiation with different wavelengths and energy levels.

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