Source: wikibot/optical-rotatory-dispersion
= Optical rotatory dispersion
{wiki=Optical_rotatory_dispersion}
Optical rotatory dispersion (ORD) is a phenomenon in which the optical rotation of a chiral substance varies with the wavelength of light. When plane-polarized light passes through a chiral medium, the plane of polarization is rotated by an amount that depends on the wavelength of the light. This effect is a consequence of the interaction between the light and the chiral molecules in the substance.