Black Body Radiation: Black-body radiation is the thermal electromagnetic radiation within or surrounding a body in thermodynamic equilibrium with its environment, emitted by a black body (an idealized opaque, non-reflective…
Day: November 18, 2020
Dispersion and Attenuation
Dispersion: Dispersion, in wave motion, any phenomenon associated with the propagation of individual waves at speeds that depend on their wavelengths. Ocean waves, for example, move at speeds proportional to…
Bohr’s Quantization Rule
What is Bohr’s Quantization Rule? Bohr’s Quantization Rule: Of all possible circular orbits allowed by the classical theory, the electrons are permitted to circulate only in those orbits in which…
Einstein’s Coefficients
What are Einstein’s Coefficients? Einstein coefficients are mathematical quantities which are a measure of the probability of absorption or emission of light by an atom or molecule. The Einstein A…