Material A has critical angle \[{{i}_{A}},\] and material B has critical angle \[{{i}_{B}}({{i}_{B}}>{{i}_{A}}).\] 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 \[{{\sin }^{-1}}\left( \frac{\sin {{i}_{A}}}{\sin {{i}_{B}}} \right)\] [UPSEAT 2004]

• A. (i) and (iii)
• B. (i) and (iv)
• C. (ii) and (iii)
• D. (ii) and (iv)