What is planks quantam theory

Planck’s quantum theory:

According to this theory:

1. Energy emitted or absorbed is not continuous, but is in the form of packets called quanta .In terms of light it is called as photon.
2. Each photon carries an energy which is directly proportional to the frequency of wavelength i.e. E depends upon v (nu).
   1. Or E=hv (where v is frequency)
   2. Value of h =6.634 x 10^-34Jsec
3. Energy associated with no of packets is given by:

E=nhv (where n is an integral multiple)

This formula can also be written as:

E = (nhc)/ (λ)

 (Because we know frequency=speed of light/wavelength)

V = (c/ λ)

According to Planck's quantum theory, Different atoms and molecules can emit or absorb energy in discrete quantities only. The smallest amount of energy that can be emitted or absorbed in the form of electromagnetic radiation is known as quantum.