Consider an equilateral prism (refractive index √2). A ray of light is incident on its one surface at a certai…

Question

Consider an equilateral prism (refractive index $\sqrt{2}$ ). A ray of light is incident on its one surface at a certain angle $i$ . If the emergent ray is found to graze along the other surface, then the angle of refraction at the incident surface is close to

A
$15^\circ$
B
$40^\circ$
C
$20^\circ$
D
$30^\circ$

Accepted Answer

A. $$15^\circ$$

Answer

B. $$40^\circ$$

Answer

C. $$20^\circ$$

Answer

D. $$30^\circ$$

Answer & step-by-step solution

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