1.

White light is passed through a prism whose angle is 5?. If the refractive indices for rays of red and blue colour are respectively 1.64 and 1.66, the angle of deviation between the two colours will be [MP PET 1997]A) 0.1 degree B) 0.2 degree C) 0.3 degree D) 0.4 degree

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The answer to question 31, Conditions necessary to observe a rainbow: (1) The SUN should be behind us. (2) It should have rained and the Sun should be present. 




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