MHT CET 2023 Physics question

Which of the following is NOT involved in the formation of secondary rainbow?

(A)Refraction
(B)Angular dispersion
(C)InterferenceCorrect
(D)Total internal reflection

Answer: (C)

Solution

In the textbook explanation of a rainbow, sunlight entering a spherical raindrop undergoes refraction on entering, dispersion into colours (angular dispersion), and internal reflection at the back of the drop, followed by refraction on leaving. In the secondary rainbow the ray suffers two internal reflections

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Question ID VK-095266