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.
For example, CHClO is trigonal planar with bond angles of approximately 120 degrees, but BCl3 is trigonal planar with bond angles of exactly 120 degrees. Molecules that contain a lone pair on the central atom show even more distortion in the bond angles.f you draw out the Lewis Structure you can see that CHClO has a central atom of C with a single bond to H, a single bond to Cl, and a double bond to O.