A ray of light is incident normally on one of the face of a prism of angle 30o and refractive index
root over 2 . What will be the angle of deviation ?
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https://www.meritnation.com/ask-answer/question/a-ray-of-light-is-incident-normally-on-one-face-of-prism-of/science/7027935
https://www.meritnation.com/ask-answer/question/a-ray-of-light-is-incident-normally-on-one-face-of-prism-of/science/7027935