Exam-style question
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How does increasing the intensity of light affect the photoelectric effect, and what is the consequence of this change?.
Model answer
What a good answer should say
- Increasing the intensity of light increases the number of photons hitting the surface, leading to more electrons being emitted, but does not affect their energy.
Explanation
Why this works
This answer effectively explains the cause (increased intensity), the mechanism (more photons), the effect (more electrons emitted), and the consequence (the energy of emitted electrons remains unchanged). It tests the student's ability to connect intensity with the photoelectric effect.
Common mistake
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