The phenomenon in which the electrons or charged particles absorb electromagnetic radiation and are ejected from the surface of the material is known as photoelectric effect. It can also be defined as the ejection of electrons from a surface when light is incident on it.
Explanation:
Complete step by step answer:
According to photoelectric effect, the energy of incident photons is equal to the energy required to remove an electron from the surface and kinetic energy of the emitted electron. When the energy of incident photons on metals is just sufficient to escape an electron or it is greater than that binding energy (work function) photo electrons are emitted.
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Answer:
The phenomenon in which the electrons or charged particles absorb electromagnetic radiation and are ejected from the surface of the material is known as photoelectric effect. It can also be defined as the ejection of electrons from a surface when light is incident on it.
Explanation:
Complete step by step answer:
According to photoelectric effect, the energy of incident photons is equal to the energy required to remove an electron from the surface and kinetic energy of the emitted electron. When the energy of incident photons on metals is just sufficient to escape an electron or it is greater than that binding energy (work function) photo electrons are emitted.
hν=W+K.E.
where h
is Planck's constant=6.62×10−34
ν
is frequency of incident photon
W
is the work function=1eV=1.6×10−19J
K.E.
is kinetic energy of the electron