65. Pick the wrong answer in the context with rainbow.
(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
Answer : (c) An observer can see a rainbow when his front is towards the sun
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