More On Angle Relations

Lines And Angles - Some Basic Definitions|Types Of Angles|Complementary And Supplementary Angles|Relation Between Two Angles|Axioms

Write the relation between the angle of incidence and the angle of refraction for a medium.

Define critical angle for a given pair of medium and find the relation between critical angle and refractive index.

In Davisson-Germer experiment the relation between Bragg’s angle phi and diffraction angle theta is

In Davisson-Germer experiment, the correct relation between angle of diffraction phi and glancing angle theta is-

If A,B,C are three angles of a triangle , then which one of the following relations is not correct ?

Define critical angle and give its relation with refractive index.