Why emergent ray and incident ray are parallel to each other ? Explain.
Share
Why emergent ray and incident ray are parallel to each other ? Explain.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
The emergent ray and incident ray parallel to each other because of refraction of light.
The angle of incidence on the first surface { from air to glass} be i and the angle of refraction at the first surface be r.
Since the surfaces are parallel the ray inside the glass falls at the other surface at angle r and therefore the ray emerges at angle i that is the angle of incidence.
Therefore the incident ray is parallel to the emergent ray.
Hope this will help you ^_^