After a photon is incident on a metal surface | vedclass

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Question

(A) According to the quantum theory of light,the interaction between a photon and an electron is an instantaneous process.When a photon of sufficient

Vedclass · Accepted Answer

$10^{-10} \ s$

Vedclass · Answer

(A) According to the quantum theory of light,the interaction between a photon and an electron is an instantaneous process.When a photon of sufficient energy strikes a metal surface,the energy transfer occurs immediately.Experimental observations confirm that the time lag between the incidence of the photon and the emission of the photoelectron is extremely small,approximately $10^{-10} \ s$ or less.Therefore,the correct option is $A$.

After a photon is incident on a metal surface,the time taken for the emission of a photoelectron from the surface is approximately ...........

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