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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

KCETKCET 2022Ray Optics and Optical Instruments

Solution:

Correct answer is (c) $90^{\circ}$

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