Question

explain the photo electric effect in detail..(class 11th)​

Answer 1

Answer:

“The phenomenon of ejection of electrons from the surface of a metal when light of suitable frequency strikes on it, is called photoelectric effect. The emitted electrons are called photoelectrons.” Experimental studies of photoelectric effect under different conditions led to the following important observations—

Explanation:

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Answer 2

Answer:

photoelectric effect:- it is the ejection of electron from the surface of the matter under the influence of striking proton.

caesium caesium show the effect more easily due to the low ionization enthalpy

explanation a photoelectric effect:-

energy of incident radiation is equal to finding + kinetic energy of effected.

if energy of photon is more than stress afl energy is emitted electron will acquire some kinetic energy

observations:-

1. only photons of light certain minimum frequency code threshold frequency can cause the photoelectric current
2. kinetic energy of the emitted electron directly proportional to the photon
3. the number of emitted electron depend upon the intensity of photon..

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