A liquid of refractive index `1.33` is placed between two identical plano-convex lenses, with refractive index `1.50`. Two possible arrangement P and Q are shown in figure-. The system is:

A liquid of refractive index 1.33 is placed between two identical plano-convex lenses, with refractive index 1.50 . Two possible arrangement P and Q are shown. The system is

A liquid of refractive index 1.33 is placed between two identical plano-convex lenses, with refractive index 1.50 . Two possible arrangement P and Q are shown. The system is

A liquid of refractive index 1.6 is introduced between two identical plano-convex lenses in two ways P and Q as shown. If the lens ma terial has refractive index 1.5, the combina tion is

The adjacent figure shows a thin plano-convex lens of refractive index mu_1 and a thin plano-concave lens of refractive index mu_2 , both having same radius of curvature R of their curved surfaces. The thin lens of refractive index mu_3 has radius of curvature R of both its surfaces. This lens is so placed in between the plano-convex and plano-concave lenses that the plane surfaces are parallel to each other. The focal length of the combination is

The adjacent figure shows a thin plano-convex lens of refractive index mu_1 and a thin plano-concave lens of refractive index mu_2 , both having same radius of curvature R of their curved surfaces. The thin lens of refractive index mu_3 has radius of curvature R of both its surfaces. This lens is so placed in between the plano-convex and plano-concave lenses that the plane surfaces are parallel to each other. The focal length of the combination is

The adjacent figure shows a thin plano-convex lens of refractive index mu_1 and a thin plano-concave lens of refractive index mu_2 , both having same radius of curvature R of their curved surfaces. The thin lens of refractive index mu_3 has radius of curvature R of both its surfaces. This lens is so placed in between the plano-convex and plano-concave lenses that the plane surfaces are parallel to each other. The focal length of the combination is

Curved surfaces of a plano-convex lens of refractive index mu_(1) and a plano-concave lens of refractive index mu_(2) have equal radius of curvature as shown in figure. Find the ratio of radius of curvature to the focal length of the combined lenses.

A liquid of refractive index 1.6 is contained in the cavity of a glass specimen of refractive index 1.5 as shown in figure. If each of the curve surface has a radius of curvature of 0.20m, the arrangement obehaves as a

A liquid of refractive index 1.6 is contained in the cavity of a glass specimen of refractive index 1.5 as shown in figure. If each of the curve surface has a radius of curvature of 0.20m, the arrangement obehaves as a