For the given incident ray as shown in figure, the condition of total internal reflection of this ray the minimum refractive index of prism will be : - 45º incident ray

Question

https://clay6.com/mpaimg/pc29.jpg

( A ) $\frac{\sqrt{3}+1}{2}$
( B ) $\sqrt{\frac{3}{2}}$
( C ) $\sqrt{\frac{7}{6}}$
( D ) $\frac{\sqrt{2}+1}{2}$