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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is photocurrent?
💡 Hint: Think about how electrons behave when they interact with light.
Question 2
Easy
What happens to photocurrent if intensity is increased?
💡 Hint: Remember, more intensity means more potential for ejection of 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 happens to the photocurrent when the intensity of light is increased?
- It decreases
- It stays the same
- It increases linearly
💡 Hint: Think about how more light can lead to more electrons being ejected.
Question 2
True or False: The threshold frequency is the maximum frequency of light that can produce photocurrent.
- True
- False
💡 Hint: Remember, it's about the requirement to eject electrons.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If the photocurrent at 100 W/m² is measured to be 1 mA, calculate the photocurrent at 200 W/m² under the same conditions (frequency and potential).
💡 Hint: Use the linear relationship between intensity and photocurrent.
Question 2
Discuss how changing the electron emission material (like from zinc to cesium) affects photocurrent for the same intensity of light and frequency.
💡 Hint: Consider how the threshold frequency plays a role in this scenario.
Challenge and get performance evaluation