NEET 2000 Physics question

Rainbow is formed due to :

(1)Scattering & refraction
(2)Total internal reflection & dispersionCorrect
(3)Reflection only
(4)Diffraction and dispersion

Answer: (2)

Solution

A rainbow is formed when sunlight enters a spherical water droplet, is refracted and dispersed into its colours (the refractive index of water differs for each colour), undergoes total internal reflection at the back surface of the droplet and then emerges after a

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Question ID VK-088545