PlanckMax02

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( Planck's Quantum Theory )

Quantum Physics

Max Planck's greatest contribution to physics is Quantum Physics. He paved the way for many other physicists, and laid the foundation of Quantum Physics to modern knowledge. Quantum Physics according to Planck, is the evolution of particle wave duality of light and matter. Planck completely obliterated the theory that light travels in a continuous wave, Max said that light must be emitted and absorbed in discrete amounts if it was to correctly describe and support the observed phenomena. The law of radiation of bodies as a body of temperature could not be solely derived from the Laws of Maxwellian Electrodynamics. To arrive at results consistent with the relevant experiments, radiation of a given frequency //f// had to be treated as though it consisted of energy atoms (photons) of the individual energy //hf//, where //h// is Planck's own universal constant. Planck's universal constant //f,// just simply means that energy is not continuous.

Planck's law on Black Body radiation is his second greatest contribution to physics, and supports and describes the spectral radiance of electromagnetic radiation at all wavelengths emitted in the normal direction from a black body //T// as a function of frequency //v.// This function stands for the emitted power per unit area of emitting surface, per unit solid angle, per unit of frequency. Black Bodies are are Lambertian objects, that actually means that the radiance is proportional to the cosine of the viewing angle. Therefore, the spectral radiance of a black body surface viewed from an arbitrary angle //O// is //I ( v,T,O ) = I ( v,T ) cos(O).// The function explains that a factor shorter in wavelength than the frequency peak. As for //I ( v,T )// it falls off exponentially for shorter wavelengths and polynomially for longer, with the peculiar difference that the polynomial is //A4//. The radiance emitted over a frequency range or a wavelength range can be obtained by integrating its respective functions.