Practice EINSTEIN’S PHOTOELECTRIC EQUATION: ENERGY QUANTUM OF RADIATION - 11.6 | 11. DUAL NATURE OF RADIATION AND MATTER | CBSE 12 Physics Part 2
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the definition of the photoelectric effect?

💡 Hint: Think about how light interacts with metals.

Question 2

Easy

Who proposed the photon theory explaining the photoelectric effect?

💡 Hint: This physicist was awarded a Nobel Prize for this work.

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Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the relationship between light intensity and the energy of emitted photoelectrons?

  • Intensity increases energy
  • Intensity has no impact on energy
  • Higher intensity reduces energy

💡 Hint: Think about how energy is defined in the context of photons.

Question 2

Is the stopping potential dependent on the frequency of the incident light?

  • True
  • False

💡 Hint: Recall the relationship defined in Einstein's equation.

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Challenge Problems

Push your limits with challenges.

Question 1

A metal's work function is 3.1 eV. What frequency of light is required to cause photoemission?

💡 Hint: High frequency light often means ultraviolet or visible spectrum for metals.

Question 2

Explain why the photoelectric effect cannot be explained by classical wave theory.

💡 Hint: Consider the concept of quantization introduced by Einstein.

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