I know how normal lights produce lights, but how do fluorescent lights do it?:)
Radiation: The main precept of fluorescent tube operation is based around inelastic scattering of electrons. An incident electron (emitted from the coils of wire forming the cathode electrode) collides with an atom in the gasoline (such as mercury, argon or krypton) used because the ultraviolet emitter. This reasons an electron within the atom to briefly bounce as much as a bigger power level to take in some, or all, of the kinetic power delivered with the aid of the colliding electron. This is why the collision is called 'inelastic' as one of the vital vigor is absorbed. This higher vigour state is unstable, and the atom will emit a photon to allow the atom's electron to revert to a cut down, extra stable, power degree. The photons which are released from the chosen fuel mixtures are likely to have a wavelength in the extremely-violet part of the spectrum. This is not seen to the human eye, so have got to be converted into visible gentle. That is carried out by using using fluorescence. This fluorescent conversion happens in the phosphor coating on the inside floor of the fluorescent tube, the place the extremely-violet photons are absorbed with the aid of electrons within the phosphor's atoms, inflicting a equivalent power leap, then drop, with emission of an additional photon. The photon that's emitted from this 2nd interplay has a lessen power than the person who caused it. The chemical compounds that make up the phosphor are notably chosen in order that these emitted photons are at wavelengths noticeable to the human eye. The change in vigor between the absorbed ultra-violet photon and the emitted seen gentle photon goes to heat up the phosphor coating.
Normal lights is to do with heating, and emitting radiation in the form of light due to the heat energy. In fluorescent, instead of heat energy, chemical energy is turned into light energy. In fluorescent bulbs, there are fluorescent materials coated inside. The physics behind it is when a certain energy is absorbed by the electron in its outer shell of the fluorescent material, it goes to a high orbital and comes back to the ground state. When coming back to the ground state, the energy it absorbed is released in the form of electromagnetic radiation, which is light.
