For reflection throught small angled prism ,the angled of deviation:
A. increase with the increase in`R.I`of prism
B. will decrease with the increase in`R.I.`of prism
C. is directly proportional to the angle of prism.
D. will be `2D`for a ray of `R.I.=2.4`if it is`D` for a ray of `R.I.=1.2`