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In the above experimental set up for studying photoelectric effect, if keeping the frequency of the incident radiation and the accelerating potential fixed, the intensity of light is varied, then
 
  • a)
    photocurrent decreases nonlinearly with intensity
  • b)
    photocurrent decreases linearly with intensity
  • c)
    photocurrent remains same with intensity
  • d)
    photocurrent increases linearly with intensity
Correct answer is option 'D'. Can you explain this answer?
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In the above experimental set up for studying photoelectric effect, if...
With increasing intensity the no of emmited photoelectron increases so the photocurrent increases and that too linearly.
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In the above experimental set up for studying photoelectric effect, if...
The number of electrons emitted per second is observed to be directly proportional to the intensity of light. “Ok, so light is a wave and has energy. It takes electrons out of a metal, what is so special about that!” First of all, when the intensity of light is increased, we should see an increase in the photocurrent (number of photoelectrons emitted). Right?
As we see, this only happens above a specific value of frequency, known as the threshold frequency. Below this threshold frequency, the intensity of light has no effect on the photocurrent! In fact, there is no photocurrent at all, however high the intensity of light is.

The graph between the photoelectric current and the intensity of light is a straight line when the frequency of light used is above a specific minimum threshold value.
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In the above experimental set up for studying photoelectric effect, if keeping the frequency of the incident radiation and the accelerating potential fixed, the intensity of light is varied, thena)photocurrent decreases nonlinearly with intensityb)photocurrent decreases linearly with intensityc)photocurrent remains same with intensityd)photocurrent increases linearly with intensityCorrect answer is option 'D'. Can you explain this answer?
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In the above experimental set up for studying photoelectric effect, if keeping the frequency of the incident radiation and the accelerating potential fixed, the intensity of light is varied, thena)photocurrent decreases nonlinearly with intensityb)photocurrent decreases linearly with intensityc)photocurrent remains same with intensityd)photocurrent increases linearly with intensityCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about In the above experimental set up for studying photoelectric effect, if keeping the frequency of the incident radiation and the accelerating potential fixed, the intensity of light is varied, thena)photocurrent decreases nonlinearly with intensityb)photocurrent decreases linearly with intensityc)photocurrent remains same with intensityd)photocurrent increases linearly with intensityCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the above experimental set up for studying photoelectric effect, if keeping the frequency of the incident radiation and the accelerating potential fixed, the intensity of light is varied, thena)photocurrent decreases nonlinearly with intensityb)photocurrent decreases linearly with intensityc)photocurrent remains same with intensityd)photocurrent increases linearly with intensityCorrect answer is option 'D'. Can you explain this answer?.
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