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What does the photoelectric effect demonstrate?

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Question: What does the photoelectric effect demonstrate?

Options:

  1. Light behaves only as a wave.
  2. Light can be absorbed by matter.
  3. Light has particle-like properties.
  4. Light cannot cause electron emission.

Correct Answer: Light has particle-like properties.

Solution: 

The photoelectric effect demonstrates that light has particle-like properties, as it can cause the emission of electrons from a material when it is above a certain frequency.

What does the photoelectric effect demonstrate?

Practice Questions

Q1
What does the photoelectric effect demonstrate?
  1. Light behaves only as a wave.
  2. Light can be absorbed by matter.
  3. Light has particle-like properties.
  4. Light cannot cause electron emission.

Questions & Step-by-Step Solutions

What does the photoelectric effect demonstrate?
  • Photoelectric Effect – The phenomenon where light causes the emission of electrons from a material, demonstrating the particle nature of light.
  • Wave-Particle Duality – The concept that light exhibits both wave-like and particle-like properties.
  • Threshold Frequency – The minimum frequency of light required to emit electrons from a material.
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