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2:14 AM Ch 1 - Definitions |
1. Quantization of Radiation (Planck's Hypothesis) .
"If a physical system executes a simple harmonic motion in one dimension with frequency v, it take only those energy values E which are given by the relation".
2. Blackbody Radiation .
"Any object which is a good absorber of radiation of a particular wavelength is also a good emitter of radiation of the same wavelength. A body which absorbs radiation of all wavelengths is called a blackbody".
3. Stefan-Boltzman law :
"For a blackbody of temperature T, the heat energy radiated by the body per unit area per second is proportional to the fourth power of its temperature" .
4. The Photon (The Quanta) :
"a packet or bundle of energy moving with the speed of light c" .
5. The Photoelectric Effect :
"The ejection of electrons from a surface by the action of light (or electromagnetic radiation) fig. Page 12" .
6. X-rays :
"The loss in kinetic energy (k1 - k2) of the electron appears as electromagnetic radiation of energy hv, " .
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