A wide slab consisting of two media of refractive indices $$n_1$$ and $$n_2$$ is placed in air as shown in the figure. A ray of light is incident from medium $$n_1$$ to $$n_2$$ at an angle $$\theta$$, where $$\sin \theta$$ is slightly larger than $$\frac{1}{n_1}$$. Take refractive index of air as 1. Which of the following statement(s) is(are) correct?

A

The light ray enters air if $$n_2 = n_1$$

B

The light ray is finally reflected back into the medium of refractive index $$n_1$$ if $$n_2 < n_1$$

C

The light ray is finally reflected back into the medium of refractive index $$n_1$$ if $$n_2 > n_1$$

D

The light ray is reflected back into the medium of refractive index $$n_1$$ if $$n_2 = 1$$