A thin convex lens made from crown glass \left(\mu=\frac{3}{2}\right)(μ=
2
3
) has focal length f .f. When it is measured in two different liquids having refractive indices \frac{4}{3}
3
4
and \frac{5}{3}
3
5
it has the focal lengths f_{1}f
1
and f_{2}f
2
respectively. The correct relation between the focal lengths is:
1
