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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 light interacting with materials.
Question 2
Easy
What does the stopping potential measure?
💡 Hint: Focus on what happens to electrons when light is used.
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
Which parameter does not affect the emission of electrons in the photoelectric effect?
- Frequency of light
- Intensity of light
- Material type
💡 Hint: Consider what condition must be met for electrons to be emitted.
Question 2
True or False: The stopping potential is related to the intensity of light.
- True
- False
💡 Hint: Reflect on key observations from the photoelectric experiments.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A photon of light with frequency of 6 x 10^14 Hz strikes a metal surface with a work function of 2.5 eV. Calculate the maximum kinetic energy of the emitted electrons.
💡 Hint: Use the photoelectric equation and remember to convert eV to joules.
Question 2
If the minimum work function of a material is 4 eV, what is the threshold frequency required to emit electrons?
💡 Hint: Evaluate how much energy is translated into frequency.
Challenge and get performance evaluation