1.

The refractive indices of glass and water with respect to air (1)/(2) and (1)/(sqrt(3)) respectively. Then the refractive index of are glass with respect to water is

Answer»

`(1)/(sqrt3)`
`(sqrt3)/(2)`
`(2)/(sqrt3)`
2

Solution :given : `""^(a)mu_(g)=(1)/(2), ""^(a)mu_(W)=(1)/(sqrt3) because ""^(a)mu_(w)xx""^(w)mu_(g)=""^(a)mu_(g)`
`therefore ""^(w)mu_(g)=(""^(a)mu_(g))/(""^(a)mu_(g))=(1//2)/(1//sqrt3)=(sqrt3)/(2)`


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