Questions
A point source of light is used in an experiment on photoelectric effect. Which of the following curves best represents the variation of photo current (l) with distance d of the source from the emitter?
detailed solution
Correct option is D
i∝Id2and photo current i∝I⇒∝1d2Talk to our academic expert!
Similar Questions
A photo cell is illuminated by a small bright source placed at 1m away. When the same source of light is placed 2m away, which of the following is true about the electrons emitted by the photo cathode?
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