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When a certain beam of light falls upon a metal surface, it ejects photoelectrons from it.
The number of photoelectrons ejected per second by the beam of light depends upon one of the following.
Is it proportional to:
a) The threshold frequency of the metal
b) The work function of the metal
c) The frequency of the beam
d) The intensity of the beam
Ans- The intensity of the beam
what is electric field
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