Q. Consider a glass slab which is silvered at one side and the other side is transparent. Given the refractive index of the glass slab to be $1.5$. If a ray of light is incident at an angle of $45^{\circ}$ on the transparent side, the deviation of the ray of light from its initial path, when it comes out of the slab is
Solution:
Correct answer is (c) $90^{\circ}$
