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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 how light interacts with a surface!
Question 2
Easy
Who discovered the electron?
💡 Hint: Remember the name associated with cathode ray experiments.
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 established the wave nature of light?
- Maxwell's equations
- Einstein's theory
- Thomson's experiments
💡 Hint: Consider who formulated the equations governing electric and magnetic fields.
Question 2
True or False: Electrons can be emitted from a metal surface under any light frequency.
- True
- False
💡 Hint: Think about the conditions required for electron emission.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider that in an experiment, a metal surface can emit electrons if illuminated with light of frequency 5 × 10^14 Hz. If the work function for this metal is 2 eV, calculate the maximum kinetic energy of the emitted electrons.
💡 Hint: First calculate the photon energy and then use it in the kinetic energy formula.
Question 2
If a certain metal exhibits photoelectric emission at a threshold frequency of 7.5 × 10^14 Hz, determine whether a light of frequency 6 × 10^14 Hz will result in electron emission.
💡 Hint: Compare the incident light frequency with the threshold frequency.
Challenge and get performance evaluation