MCQ
Material A has critical angle $\mathrm{i}_{\mathrm{A}}$, and material B has critical angle $i_B\left(i_B>i_A\right)$. Then which of the following is true
$(i)$ Light can be totally internally reflected when it passes from $B$ to $A$
$(ii)$ Light can be totally internally reflected when it passes from $A$ to $B$
$(iii)$ Critical angle for total internal reflection is $i_B-i_A$
$(iv)$ Critical angle between $A$ and $B$ is $\sin ^{-1}\left(\frac{\sin i_A}{\sin i_B}\right)$
$(i)$ Light can be totally internally reflected when it passes from $B$ to $A$
$(ii)$ Light can be totally internally reflected when it passes from $A$ to $B$
$(iii)$ Critical angle for total internal reflection is $i_B-i_A$
$(iv)$ Critical angle between $A$ and $B$ is $\sin ^{-1}\left(\frac{\sin i_A}{\sin i_B}\right)$
- A$(i)$ and $(iii)$
- B$(i)$ and $(iv)$
- C$(ii)$ and $(iii)$
- ✓$(ii)$ and $(iv)$
