A parallel glass slab of refractive index \( \sqrt{3} \) is placed in contact with an equilatera...

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A parallel glass slab of refractive index \( \sqrt{3} \) is placed in contact with an equilateral prism of refractive index \( \sqrt{2} \). A ray
\( \mathrm{P} \) is incident on left surface of slab as shown. The slab and prism

W combination is surrounded by air. The magnitude of minimum possible deviation of this ray by slab-prism combination is:
Figure \( 5.328 \)
(A) \( 30^{\circ} \)
(B) \( 45^{\circ} \)
(C) \( 60^{\circ} \)
(D) \( 60^{\circ}-\sin ^{-1} \sqrt{\frac{2}{3}} \)
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