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

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

ManipalManipal 2013Dual Nature of Radiation and Matter

Solution:

Intensity cannot change the cut off frequency or stopping potential. High intensity means more number of photons, so chances of hitting to electron by them increase and hence more photoelectron are emitted i.e., photocurrent increases.