Question

what is the angle of prism​

Answer 1

The angle between two surfaces is known as refracting angle or angle of prism. In a prism, a ray of light suffers two refraction and the result is deviation. In other words, we say that after passing throughprism the ray of light deviates through a certain angle from its original path.

Answer 2

the angle between two surface of prism is called angle of prism

generally denoted by A