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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?

(a) Cut-off frequency decreases

(b) Stopping potential decreases

(c) Time delay for emission of photoelectron decreases

(d) Saturation photocurrent increases

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A)
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.

 

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