628Every Day ScienceMedium
Which of the following phenomena of light are involved in the formation of a rainbow?
ADispersion
BTotal internal reflection
CAll of the above
DRefraction
Correct answer
C. All of the above
Explanation
The formation of rainbow involves all three phenomenon: Refraction, dispersion, and total internal reflection. The sunlight shines on a water droplet. As the light passes into the raindrop the light bends, or refracts. Due to slow down of light, white light gets dispersed into seven colours. Then total internal reflection happens on the other end of the drop.