question_answer

If the polarizing angle for air-glass inter- face is\[\mathbf{56}.\mathbf{3}{}^\circ \], what is the angle of refraction in glass?

Answer:

                As \[{{i}_{p}}+{{r}_{p}}={{90}^{\circ }}\] \[\therefore \]  \[{{r}_{p}}=90-{{i}_{p}}={{90}^{\circ }}-{{56.3}^{\circ }}=\mathbf{33}\mathbf{.}{{\mathbf{7}}^{\mathbf{o}}}\]