A glass prism \( (\mu=1.5) \) is dipped in water \( (\mu=4 / 3) \) as shown in figure. A light r...

A glass prism \( (\mu=1.5) \) is dipped in water \( (\mu=4 / 3) \) as shown in figure. A light ray is incident normally on the surface \( A B \). It reaches the surface \( B C \) after totally reflected, if
(A) \( \sin \theta \geq 8 / 9 \)
(B) \( \sin \theta \leq 2 / 3 \)
(C) \( 2 / 3\sin \theta8 / 9 \)
(D) It is not possible