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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the photoelectric effect?
💡 Hint: Think about the interaction between light and electrons.
Question 2
Easy
Define work function.
💡 Hint: Consider this as the barrier for electron release.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the photoelectric effect?
- A) Emission of photons
- B) Emission of electrons
- C) Absorption of light
💡 Hint: What happens to electrons when light hits a metal?
Question 2
Einstein’s photoelectric equation shows that the maximum kinetic energy of emitted electrons depends on the frequency of light.
- True
- False
💡 Hint: Think about how different frequencies might affect energy.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a metal has a work function of 4.5 eV, what is the threshold frequency for photoelectric emission?
💡 Hint: Convert eV to J first before using Planck's constant.
Question 2
Calculate the de Broglie wavelength of an electron with a momentum of 5 × 10^-24 kg m/s.
💡 Hint: Ensure you keep units consistent when substituting values.
Challenge and get performance evaluation