A ray of light is incident normally on one face of a prism as shown in figure. The refractive index of the material of the prism is `(5)/(3)` and the prism is immersed in water of refractive index `(4)/(3)`, then

Options

A. The exit angle `theta_(2)` of the ray is `sin^(-1)((5)/(8))`
B. The exit angle `theta_(2)` of the ray is `sin^(-1)((5)/(4sqrt(3)))`
C. Total internal reflection at point ceases if the refractive index of water in increased to `(5)/(2sqrt(3))` by dissolving some substance
D. Total internal reflection at point P ceases if the refractive index of water is increased to `(5)/(6)` by dissolving some substance