Questions
The number of photo-electrons emitted per second from a metal surface increases when
detailed solution
Correct option is D
Intensity (No. of photons) ∝ (No. of photoelectrons)Talk to our academic expert!
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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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