Nature Of Light|Properties Of Photon|Questions|Electron Emission

Speed of photons in photoelectric emission is

Questions|Dual Nature Of Light|De-Broglie Hypothesis|Questions|OMR

Assertion : Photoelectric effect supports the quantum nature of light. Reason : Photoelectric emission is instantaneous.

Photoelectric Effect|Energy Of Photon|Linear Momentum Of Photon|Intensity Of Light|Questions|Experimental Study Of P.E.E By Lenard|Explanation By Einstein|OMR

In a photon-electron collision ……………………. .

A photosensitive surface ejects electrons when green light is incident on it. It does not emit any photoelectrons when exposed to orange light. Will there be any photoelectrons emission if blue light is incident on it ?

Of the following properties the photon does not possess

A : Work function of aluminium is 4.2 eV . Emission of electrons will be possible by two photons , each of 2.5 eV energy , striking the electron of aluminium . R : Energy of a photon can be less then the work function of the metal , for photoelectron emission .

Statement I : Photo-electric effect demonstrates particle nature of light. Statement II : Number of photons is proportional to frequency of photons.