What is another word for normal-incidence raypath?
Pronunciation: [nˈɔːmə͡lˈɪnsɪdəns ɹˈe͡ɪpaθ] (IPA) 
A normal-incidence raypath is a term used in the field of optics to describe the path a light ray takes when it hits a surface at a 90-degree angle. Other synonyms for this term include normal raypath, perpendicular raypath, and orthogonal raypath. Each of these terms is used interchangeably to describe the same phenomenon. A normal-incidence raypath is an important concept in optics, as it allows researchers to understand the relationship between the angle at which light hits a surface and how it is reflected or refracted. Understanding the different synonyms for this term will help researchers to communicate effectively about their work in this field.
