Practice - Photoelectric Effect
Practice Questions
Test your understanding with targeted questions
What is the photoelectric effect?
💡 Hint: Think about how light interacts with metals.
Define threshold frequency.
💡 Hint: What is necessary for electrons to be released?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What happens when light below the threshold frequency hits a metal surface?
💡 Hint: Think about the specific frequency needed.
The energy of a photon is directly proportional to its frequency.
💡 Hint: Consider the equation involving frequency.
1 more question available
Challenge Problems
Push your limits with advanced challenges
An electron in a metal absorbs a photon of frequency 7.5 × 10¹⁴ Hz. If the work function of the metal is 2.5 eV, determine the maximum kinetic energy of the emitted electron.
💡 Hint: Convert frequency to energy using Planck's constant.
Consider a photon having an energy of 10 eV hitting a surface with a work function of 5 eV. What is the kinetic energy of the emitted electron?
💡 Hint: Simple subtraction afterwards will help you find K_max.
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Reference links
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