Flint glass prism is joined by a crown glas prism to produce dispersion without deviation. Th refractive indices of these for mean rays are `1.602` and 1.500 repsectively. If the angle of prism of flint prism is `10^(0)`, then the angle of prism for crown prism is `nxx6.02^(@)`. Then find `n`.

Answer

B

Explanation

`delta_(net)=0`
`(n_(y_(1))-1)A_(1)-(n_(y_(2))-1)A_(2)=0`
`(1.500-1)A_(1)=(1.600-1)10^(@)`
`A_(1)=12.04^(@)`