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Geometrical Optics question

2022 · Q139
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Geometrical Optics question

2022 · Q139

NEETPhysicsGeometrical OpticsMCQ+4 / −1

During a cloudy day, a primary and a secondary rainbow may be created, then the :

  1. A
    secondary rainbow is due to single internal reflection and is formed above the primary one.
  2. B
    primary rainbow is due to double internal reflection and is formed above the secondary one.
  3. C
    primary rainbow is due to double internal reflection and is formed below the secondary one.
  4. D
    secondary rainbow is due to double internal reflection and is formed above the primary one.
View written solutionFree

Correct answer: D

Primary rainbow is result of three-step process, that is, refraction, internal reflection and refraction.

Secondary rainbow is result of four step process, that is, refraction, internal reflection, internal reflection and refraction.

Secondary rainbow appears above the primary rainbow.

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