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In the formation of a rainbow light from...

In the formation of a rainbow light from the sun on water droplets undergoes

A

Reflection, refraction and dispersion

B

Refraction, dispersion and total internal reflection

C

Refraction, dispersion and internal reflection

D

Dispersion, scattering and total internal reflection

Text Solution

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The correct Answer is:
C
A rainbow is caused by dispersion, refraction and internal reflection of sunlight by tiny water droplets, present in the atmosphere and always formed in a direction opposite to that of the sun. The water droplets act like small prisms. They refract and disperse the incident sunlight, then reflect it internally and finally refract it again when it comes out of the raindrop.
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  1. A prism ABC (with BC as base) is placed in different orientations. A n...

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  2. At noon the sun appears white as

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  3. In the formation of a rainbow light from the sun on water droplets und...

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  4. Twinkling of stars is due to atmospheric

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  5. The clear sky appears blue, because

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  6. Which of the following statements is correct regarding the propagation...

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  7. The danger signals installed at the top of tall buildings are red in c...

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  8. Which of the following phenomena contributes significantly to the redd...

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  9. The blue colour of the water of the sea is due to :

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  10. When light rays enter the eye, most of the refraction occurs at the

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  11. The focal length of the eye lens increases when eye muscles

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  12. Draw ray diagrams each showing (i) myopic eye and (ii) hypermetrop...

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  13. A student sitting at the back of the classroom cannot read clearly the...

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  14. How are we able to see nearby and also the distant objects clearly?

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  15. Nooper needs a lens of power - 4.5 D for correction of her vision. (...

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  16. How will you use two indentical prisms so that a narrow beam of white ...

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  17. Draw a ray diagram showing the dispersion through a prism when a narro...

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  18. Is the position of a star as seen by us its true position? Justify you...

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  19. Why do we see a rainbow in the sky only after rainfall?

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  20. Why does clear sky appear blue ?

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