One form of phenomenon can be reduced by using a graded-index profile instead of a step-index profile; that form of this phenomenon is termed "intermodal" or "multimodal." This phenomenon can be quantified using a number calculated using three Fraunhofer lines and symbolized V-sub-d; that number is named for Abbe. Group velocity can be calculated by differentiating a "relation" named for this phenomenon. This phenomenon occurs when a medium's (*) index of refraction is dependent on the wavelength, thus causing a non-coherent light beam to separate since Snell's law implies the different wavelengths refract at different angles. For 10 points, name this optical phenome
One form of phenomenon can be reduced by using a graded-index profile instead of a step-index profile; that form of this phenomenon is termed "intermodal" or "multimodal." This phenomenon can be quantified using a number calculated using three Fraunhofer lines and symbolized V-sub-d; that number is named for Abbe. Group velocity can be calculated by differentiating a "relation" named for this phenomenon. This phenomenon occurs when a medium's (*) index of refraction is dependent on the wavelength, thus causing a non-coherent light beam to separate since Snell's law implies the different wavelengths refract at different angles. For 10 points, name this optical phenomenon which explains how a prism splits white light into a rainbow.
One form of phenomenon can be reduced by using a graded-index profile instead of a step-index profile; that form of this phenomenon is termed "intermodal" or "multimodal."