Rainbow is produced when sunlight falls on drops of rain. Which of the physical phenomena are
responsible for this ?
1. Diffusion, 2. Refraction, 3. Internal reflection
(A) 1 and 2 (B) 2 and 3
(C) 1, 2 and 3 (D) 1 and 3

 Hi,

Abhinav has posted very appropriate answer.

The phenomenon of refraction takes place when sunlight travels from air to the water droplets. The phenomenon of internal reflection comes into picture when the light ray has enterd the water droplet.

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B) 2 and 3

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