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What is the effect of increasing the intensity of light that falls on the emitter in a photoelectric effect apparatus?

(a) Cut-off frequency decreases

(b) Stopping potential decreases

(c) Time delay for emission of photoelectron decreases

(d) Saturation photocurrent increases
Can you answer this question?
 
 

1 Answer

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Ans : (d)
Intensity cannot change cut-off frequency or stopping potential.
High intensity means more number of photons,
so chances of hitting an electron by them increases and hence
more photoelectrons are emitted i.e., photocurrent increases.

 

answered Dec 27, 2013 by thanvigandhi_1
edited Mar 13, 2014 by thanvigandhi_1
 

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