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[" Compare the dispersive powers of two ...

[" Compare the dispersive powers of two prisms if "],[" one of them deviates the blue and red rays through "],[10^(@)" and "6^(@)" respectively and the second prism "],[" through "8^(@)" and "4.5^(@)],[" (1) "0.69],[" (2) "0.79],[" (3) "0.89],[" (4) "0.99]

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