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21-03-2024
Physics

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A ray of light incident on an equilateral prism shows minimum deviation of 30 ^ . The speed of light through the glass prism is :
A.2.5 x 10⁸ m/s
B.2.121 x 10⁸ m/s
C.3 x 10⁸ m/s
D.3.2 x 10⁸ m/s

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