Q.

Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this?
Diffusion
Refraction
Internal reflection
(a)I, II and III
(b)I and III
(c)I and II
(d)II and III Right sign
Details:When sunlight falls on drop of rain, it undergoes refraction and internal reflection and splits into different colours (dispersion).

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