11.4.1 - Effect of intensity of light on photocurrent
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Practice Questions
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What is photocurrent?
💡 Hint: Think about how electrons behave when they interact with light.
What happens to photocurrent if intensity is increased?
💡 Hint: Remember, more intensity means more potential for ejection of electrons.
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Interactive Quizzes
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What happens to the photocurrent when the intensity of light is increased?
💡 Hint: Think about how more light can lead to more electrons being ejected.
True or False: The threshold frequency is the maximum frequency of light that can produce photocurrent.
💡 Hint: Remember, it's about the requirement to eject electrons.
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Challenge Problems
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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.
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.
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