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Which light rays undergoes two internal ...

Which light rays undergoes two internal reflection inside a raindrop, which of the rainbow is formed?

A

Primary rainbow

B

Secondary rainbow

C

Both (a) and (b)

D

Cant's say

Text Solution

Verified by Experts

The correct Answer is:
B
Secondary rainbow is formed by rays undergoing internal reflection twice inside the drop.
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Define total internal reflection of light.

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Knowledge Check

  • Which is true for total internal reflection?

    A
    Light travels from rarer to denser medium
    B
    Light travels from denser to rarer medium
    C
    Independent of the optical densities of two medium
    D
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  • A light ray is incident on a transparent sphere of index = sqrt(2) , at an angle of incidence = 45^(@) , What is the deviation of a tiny fraction of the ray, which enters the sphere, undergoes two internal reflections and then refracts out into air?

    A
    `270^(@)`
    B
    `240^(@)`
    C
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    D
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  • Total internal reflection is possible when light rays travel

    A
    Air to water
    B
    Air to glass
    C
    Glass to water
    D
    Water to glass

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