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Question
Rainbow is produced when sunlight falls on drops of rain. Which of the following physical phenomena are responsible for this?
(I) Dispersion
(II) Refraction
(III) Internal Reflection
Options
II and III only
I and II only
I, II and III
I and III only
MCQ
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Solution
II and III only
Explanation:
The formation of a rainbow involves a series of physical phenomena - reflection, refraction, dispersion, and total internal reflection. The occurrence of each of these is due to the interaction of light with air and water and the boundaries between them.
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