Question

for the given incident ray as shown in the figure , the condition of total internal reflection of the ray will be satisfied,if the refractive index of the block will be


1)
$\frac{ \sqrt{3} + 1}{2}$
2)
$\frac{ \sqrt{2} + 1 }{2}$
3)
$\sqrt{ \frac{3}{2} }$
4)
$\sqrt{ \frac{7}{6} }$
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Answer 1

Answer:

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