When monochromatic light falls on a photosensitive material, the number of photo electron emitted per second is n and their maximum kinetic energy is 
. If the intensity of incident light is doubled, then
remains same 
is double but n remains same 
are doubled 
are halved
Text Solution
Verified by ExpertsA
We know that, 
where, e is the charge in the electron. Since, at the stopping potential, the photoelectric current cannot be obtained by increasing the intensity of the incident light. Thus, stopping potential or maximum kinetic energy of the photoelectrons, does not depend upon the intensity of the incident light. If the intensity of light be doubled, then the number of photoelectrons emitted per second is doubled.
So, n is doubled but 
remains same.
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