1.

A metal surface is illuminated by a light of given intensity and frequency to cause photoemission. If the intensity of illumination is reduced to one-fourth of its original value, then the maximum KE of emitted photoelectrons will become.A. unchangedB. 1/16 th of original valueC. twice the original valueD. four time the original value

Answer» Correct Answer - A
As the maximum kinetic energy depend on the wave length/frequency but not on intensity.


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