Category: Quantum Physics
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Einstein Contribution to Planck Formula on the Quantum Nature of Radiation
While the existence of the photoelectric effect can be understood within the framework of classical electromagnetic theory since it was known that there were electrons in metals and one could envisage them to be accelerated by absorption of radiation, the frequency-dependence of the effect is not comprehensible within that framework. The energy carried out by…
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Black Body Radiation
When a body is heated, it seen to radiate; in equilibrium the light emitted ranges over the whole spectrum of frequencies v, with a spectral distribution that depend on the frequency or equivalently on the wavelength of light λ and on the temperature. Gustav Kirchhoff proved a theorem when he showed by arguments based on…