What is the relationship between the Brewster angle of the r

What is the relationship between the Brewster angle (of the reflected ray) and the refraction angle (of the refracted ray).To study a solid\'s crystal, why do we need to use diffraction instead of just making a microscope using lenses?.

Solution

The special angle of incidence at which the angle between reflected and refracted rays is 90 degrees.

brewsters angle

       tan (theta) = n2 / n1