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Which of the following physical phenomena are responsible for this?

Rainbow is produced when sunlight falls on drops of rain. Which of the following physical phenomena are responsible for this?

1. Dispersion

2. Refraction

3. Internal reflection

Select the correct answer using the codes given below.(2013)

a) 1 and 2 only

b) 2 and 3 only

c) 1 and 3 only

d) 1, 2 and 3

Answer: D

Refer to the below link:

https://www.metoffice.gov.uk/weather/learn-about/weather/optical-effects/rainbows/how-are-rainbows-formed
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