What is the angle between reflected and refracted rays at polarising angle?

A ray of light is incident on a medium at polarising angle .What is the angle betweeen the relfected and refracted rays?

What are the differences between reflection and refraction?

Show that at polarising angle, the reflected and refracted beams of light are at 90^@ to each other.

What is the angle of incidence of a ray if the reflected ray is at an angle of 90^@ to the incident ray ?

What is the angle of incidence of a ray if the reflected ray is at an angle of 90^@ to the incident ray?