Quantum Theory
Planck's Quantum Theory 

Planck's Quantum Theory and its benefits -  

     As we know Maxwell explained to us the wave nature of electromagnetic radiation which is helpful for us to know about interference, diffraction, refraction, deviations, etc. But that doesn't mean Maxwell succeeded in explaining everything he wanted to there are concepts like the natural emission of radiation from hot bodies, the Photoelectric effect, electrons give out from the metal bodies when the electromagnetic wave hits them, and line spectra of atoms were left out of by the theory of Maxwell. The following concepts were proved and fulfilled by Planck's Quantum theory. 

The Quantum Planckstar -

Planck's Quantum Theory
 Energy Of Radiation 

      As said above every object when struck by electromagnetic wave or heat starts emitting a certain amount of radiation it is just like this, when a solid body is heated at a certain temperature it will start changing color and emit certain radiation, and this changes every time as the temperature keeps on increasing. With that said according to the black body radiation principle by Planck, it is clear that the frequency of the radiation emitted by the black body totally depends on the intensity of the heat ( temperature ). The radiation is increased with the increase in wavelength and as time passes on there is a decrease in radiation with the increase in wavelength. These are some of the things that Maxwell failed to cover regarding radiation. 
      Now according to Planck's quantum theory, it is clear that 1. Atoms and molecules emit and absorb a certain amount of energy. This absorption and emission of energy in the form of electromagnetic radiation is known as quantum. 2. The absorption and emission of the energy from the body are directly proportional to the frequency of the radiation. The following is being measured by using Planck's equation 
                 E = h v
        E - Energy of the radiation 
        h - Planck constant ( 6.626 x 10^-34 Js)
        v -  Frequency of the radiation 
      Thus with the help of Planck's quantum theory, the computer society came to know about the quantum computer and its working. The most important thing is knowing about the emission and the absorption of energy by the frequency of the radiation, with which the developers come to know how the quantum computers work internally how much energy is required to keep the quantum task carried on and what is their wavelength at that particular radiation. Yet, there is a high possibility that the wavelength calculated is not accurate as mentioned in Heisenberg's uncertainty principle