Ray Optics and Optical Instruments - Result Question 51

53. Pick the wrong answer in the context with rainbow.

[2019]

(a) When the light rays undergo two internal reflections in a water drop, a secondary rainbow is formed.

(b) The order of colours is reversed in the secondary rainbow.

(c) An observer can see a rainbow when his front is towards the sun.

(d) Rainbow is a combined effect of dispersion, refraction and reflection of sunlight.

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Answer:

Correct Answer: 53. (c)

Solution:

  1. (c) Rainbow will be observed only when the sun is at the back side of observer.