The Cherenkov effect A charged particle traveling in a dielectric medium with n>1 radiates Cherenkov radiation if its velocity is larger than the phase velocity of light v>c/n or Î² > 1/n (threshold) The emission is due to an asymmetric polarization of the medium in front and at the rear of the particle, giving rise to a varying electric dipole momentum.
cyclo-. 1. Combining forms relating to a circle or cycle; or denoting an association with the ciliary body. 2. In chemistry, a combining form indicating a continuous molecule, without end, or the formation of such a structure between two parts of a molecule.
Cyclo pentane (C5H10). Cyclopenta ne is commonly represented by the structural formula. and cyclohexane (C6H12) by the structural formula. Note the pentagon between the five carbon atoms for cyclopentane, and the hexagon between the six carbon atoms for cyclohexane.The single lines between the atoms represent single covalent bonds. Note that each carbon atom has four bonds (valency 4), and each hydrogen atom has one bond (valency 1).ote the pentagon between the five carbon atoms for cyclopentane, and the hexagon between the six carbon atoms for cyclohexane. The single lines between the atoms represent single covalent bonds. Note that each carbon atom has four bonds (valency 4), and each hydrogen atom has one bond (valency 1).