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प्रश्न
A ray of light is normally incident on one face of an equilateral glass prism. Answer the following:
What will be the angle of incidence at the second face of the prism?
आकृती
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उत्तर
As the prism is equilateral, A = 60° and r1 = 0°. So, at the second face of the prism, the angle of incidence will be 60°.
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