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COMEDK2015PhysicsElectromagnetic Waves

The best waves for emission of electrons from a surface are

Options

  1. Amicrowaves
  2. Bultraviolet rays
  3. Cinfrared rays
  4. DX-rays

Correct answer

D. X-rays

Step-by-step solution

The best waves for emission of electrons from a surface are X-rays because when X-ray photon strikes a metal surface, then produce Compton or photoelectric effect more suitably.

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