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Question

Which of the following phenomena of light are involved in the formation of a rainbow?
  1. Reflection, refraction and dispersion
  2. Refraction, dispersion and total internal reflection
  3. Refraction, dispersion and internal reflection
  4. Dispersion, scattering and total internal reflection

A
Refraction, dispersion and total internal reflection
B
Reflection, refraction and dispersion
C
Refraction, dispersion and internal reflection
D
Dispersion, scattering and total internal reflection
Solution
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During a formation of a rainbow, the phenomena of dispersion,refraction and internal reflection are involved.
A rainbow is a natural spectrum after a shower of rain(every water droplet acts as a small prism) formed due to the dispersion,refraction and internal reflection of different colours.

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Which of the following phenomena of light are involved in the formation of a rainbow?

(a) Reflection, refraction and dispersion
(b) Refraction, dispersion and total internal reflection
(c) Refraction, dispersion and internal reflection
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Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?


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Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?


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Select the correct answer using the codes given below.
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