The beautiful rainbow seen in the sky in rainy season is the result of which of the following natural phenomenon ?
(a) Refraction
(b) Dispersion
(c) Internal Reflection
(d) External Reflection
1
(a) and (b) only
2
(a), (b) and (c) only
3
(a), (b), (c) and (d)
4
a), (b) and (d) only
5
Answer not known