What is the property of the image formed by the prism?

What is the angle of emergence?

If the emergent ray makes an angle of 40 with the second refracting surface of the prism ,then find the angle of emergence.

In the experiment to trace the path of a ray of light through a triangular prism,

1. A student is asked to draw the boundary of the prism , why?

2. If the angle of incidence is 30, what can be the measure of the angle of incidence at minimum deviation ?

In the experiment to trace the path of a ray light a triangular glass prism.

1. If the emergent ray makes an angle 35 with the second face of the prism , then what is the angle of emergence.

2. Can the angle of deviation be zero and why?