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A white ray of light emerge out of a prism of angle`5^(@)`.if the refractive indices ofblue and red colours are`1.659`and`1.641`respectively ,the angle of dispersion between two colours will be-
A. `0.09^(@)`
B. `9^(@)`
C. `0.9^(@)`
D. `90^(@)`

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Correct Answer - 1
`theta=(mu_(B)-mu_(R))A`
`=(1.659-1.641)xx5`
`=0.09^(@)`

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