Can you explain me planks quantum theory in detail

Asked by  | 18th Nov, 2013, 10:24: AM

Expert Answer:

Max Plank in 1901 , gave a new revolutionary theory known as Quantum theory of radiation.

Main features of this theory are :

  1. Radiant energy is not emitted or absorbed continuously but discontinuously in the form of small packets of energy called Quanta. Each quanta is associated with a definite amount of energy.
  2. E is directly proportional to frequency of light,

         E=hv   where h is known as planks constant.  h= 6.63x10-34 Js

 

     3.  The total amount of energy emitted or absorbed by the body will be some whole no. multiple of quantum, i.e,

           E=nhv , where n is an integer such as 1, 2, 3, ....

Since, the frequency, wavelength λ, and speed of light c are related by λν = c, the Planck relation for a photon can also be expressed as

 

The above equation leads to another relationship involving the Planck constant.

Answered by Hanisha Vyas | 18th Nov, 2013, 11:10: AM

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