Question

Einstein was award Nobel Prize for of his theories
1. Theory of relativity
2. Theory of photo electricity
3. Theory of specific heats
4. Theory of Brounian motion

Answer 1

Correct Answer - Option 2 : Theory of photo electricity

The correct answer is the Theory of photoelectricity.

• The Nobel Prize in Physics 1921 was awarded to Albert Einstein "for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect."
  • The photoelectric effect is a phenomenon where electrons are emitted from the metal surface when the light of sufficient frequency is incident upon.
• Brownian motion is the random motion of particles suspended in a medium (a liquid or a gas).
• A theory of the specific heat of solids proposed by Albert Einstein in 1906.
  • Specific heat is a measure of the amount of heat energy required to change the temperature of 1 kg of a material by 1 K.