explain Planck's Quantum theory
Answers
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To explain the radiations ,Max Planck put forward a theory known as Planck's quantum theory.
The energy of each quantum is directly proportional to the frequency of the radiation, i.e. E =hν = hc/λ ,where h = Planck's constant.
The total amount of Energy emitted or absorbed by a body will be some whole number quanta.
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Answer:
After the failure of classical electromagnetic theory of radiation to explain photoelectric effect affect led Max Planck to propose a new theory on EM radiation which later known as Quantum theory of radiation.
Two major postulates of this theory are:-
Radiant energy is emitted or absorbed not continuously but discontinuously in the form of small packets of energy called quanta.
The amount of energy of energy associated with a quantum( or photon) of radiation is proportional to the frequency of radiation.
A body can emit or absorb energy only in terms of integral multiples of quantum.
E ∝ v
=> E = hv , where v is frequency of radiation and h is called Planck's constant (= 6.625 × 10^ -34 Js).
This theory is put forward to explain phenomenons like Black Body radiation, Photoelectric effect, etc