Choose the correct statements :

(A) The angle of incidence corresponding to an angle of refraction 90° is called critical angle (i_c).
(B) Refractive index of denser medium $μ = \frac{1}{\sin i_c}$
(C) For i > i_c, Snell's law of refraction cannot be satisfied.
(D) The refractive index of air increases with decrease in density.
(E) Rainbow is the combined effect of dispersion, refraction and reflection of sunlight by droplets

Choose the correct answer from the options given below:

(A), (B), (C) and (E) only

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