Rainbow is formed due to a combination of (a) Dispersion and total internal reflection (b) Refraction and absorption (c) Dispersion and focussing (d) Refraction and scattering
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Answer:
(a)
Explanation:
dispersion and TIR
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Option A is the right answer. A rainbow is formed due to a combination of Dispersion and total internal reflection.
- Due to the striking of sunlight on the water droplets, a multi-colored arc is formed in the sky.
- The arc contains 7 colors in the order VIBGYOR.
- This arc is called rainbow.
- When sunlight falls on a drop of water, it gets split into seven colors forming a spectrum this is called dispersion.
- If the angle of incidence is greater than the critical angle, the light rays undergo total internal reflection.
- These are the two phenomena responsible for the rainbow.
- #SPJ3
What is total internal reflection?
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What is Total internal reflection?
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