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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 matter.
Question 2
Easy
Define work function.
💡 Hint: Consider the energy barrier for electrons.
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 electrons caused by thermal energy
- B) Emission of electrons caused by light
- C) Emission of protons
💡 Hint: Focus on the role of light in the phenomenon.
Question 2
True or False: The intensity of light affects the stopping potential.
- True
- False
💡 Hint: Think about what affects the energy of emitted electrons.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A metal has a work function of 3.0 eV. Calculate the maximum kinetic energy of emitted electrons when illuminated with light of frequency 6.0 × 10^14 Hz.
💡 Hint: Use the relations E = hf and KE = E - φ.
Question 2
In an experiment, the stopping potential for photoelectrons emitted from a certain material is found to be 1.5 V. If the threshold frequency is 4 × 10^14 Hz, what is the maximum frequency of the light that could cause photoemission?
💡 Hint: Don’t forget the relationship between energy, voltage, and frequency.
Challenge and get performance evaluation