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  • A metal surface is exposed to solar radiationsOption: 1 The emitted electrons have energy less than a maximum value of energy depending upon the freq

A metal surface is exposed to solar radiations

Option: 1

The emitted electrons have energy less than a maximum value of energy depending upon the frequency of the incident radiation.


Option: 2

The emitted electrons have energy less than a maximum value of energy depending upon the intensity of the incident radiation.


Option: 3

The emitted electrons have zero energy


Option: 4

The emitted electrons have energy equal to the energy of photons of the incident light.


Answers (1)

best_answer

As we have learnt in photoelectric effect,

Energy\ of\ Photon = Work\ Function + KE_{max}

Here, the expression KE_{max} represents the maximum possible Kinetic energy of the emitted photoelectron under ideal conditions i.e. assuming no losses.

This implies that, under real (non ideal) conditions, Kinetic energy of the electron will be lesser than the value of KE_{max}.

It is also to be noted that the intensity affects the number of Photoelectrons emitted but does not affect their energy.

Posted by

jitender.kumar

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