Physics, asked by ss3501667gmailcom94, 1 year ago

plz answer me these questions

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Answered by samuel46

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answer for 1st qn is Photoelectric effect is the phenomenon by which the electrons are ejected from the surface of the metal when a radiation of suitable frequency is used. ... They have very low ionization energy so it will be easy to eject the electron from the alkali metals .Thus they are suitable for this effect.

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