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What phenomenon explains the emission of electrons from a metal surface when lig

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Question: What phenomenon explains the emission of electrons from a metal surface when light shines on it?

Options:

  1. Photoelectric effect
  2. Compton scattering
  3. Electron diffraction
  4. Thermal emission

Correct Answer: Photoelectric effect

Solution: 

The photoelectric effect occurs when light of sufficient frequency strikes a metal surface, causing the emission of electrons due to the absorption of energy from the photons.

What phenomenon explains the emission of electrons from a metal surface when lig

Practice Questions

Q1
What phenomenon explains the emission of electrons from a metal surface when light shines on it?
  1. Photoelectric effect
  2. Compton scattering
  3. Electron diffraction
  4. Thermal emission

Questions & Step-by-Step Solutions

What phenomenon explains the emission of electrons from a metal surface when light shines on it?
  • Step 1: Understand that light is made of tiny particles called photons.
  • Step 2: Know that metals have electrons that can move around.
  • Step 3: When light shines on a metal, the photons can hit the electrons.
  • Step 4: If the photons have enough energy (high frequency), they can give energy to the electrons.
  • Step 5: This extra energy allows the electrons to escape from the metal surface.
  • Step 6: This process of electrons being emitted from the metal due to light is called the photoelectric effect.
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