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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is photoelectric current?
💡 Hint: Think about how light interacts with electrons.
Question 2
Easy
Define saturation current.
💡 Hint: What happens when every electron is captured?
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 happens to photoelectric current when positive potential is increased?
- It decreases
- It increases until saturation
- It stays the same
💡 Hint: What marks the endpoint of current increase?
Question 2
The stopping potential is the value at which:
- True
- False
💡 Hint: What does a stopping potential indicate about electron movement?
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A photosensitive material emits electrons forming a current. Explain the experimental setup that would determine the effects of varying intensity and frequency on the photoelectric current created. What considerations must be made when varying the collector potential?
💡 Hint: Think about how varying both the light and the setup's characteristics will influence the observed results.
Question 2
Define and derive the relationships between the stopping potential and the maximum kinetic energy of photoelectrons in the context of the photoelectric effect.
💡 Hint: Link the stopping potential to electron interactions with photons.
Challenge and get performance evaluation