The definition of angle of prism is, "The angle formed due to two lateral faces of the prism is known as the angle of prism".
My question is if there is an isosceles prism then which angle should be taken as angle of prism,i.e., the two equal angles or the unequal angle? And what will be the answer in-case of a scalene prism?
Best Answer
You have to consider the angle between those two lateral faces, one from which the light enters another from which light leaves.
Whether it is isosceles or scalene prism always consider the angle between the lateral sides, where the ray enters and from where it leaves, as the angle of prism.
For an example here, angle A is the angle of prism.
For just in case, if something like this happens,
Here, $\theta$ is the angle of prism