Two identical glass `(mu_(g)=3//2)` equiconvex lenses

Two identical glass (mu_(g)=3//2) equi- convex lenses of focal length f each are kept in contact. The space between the two lenses is also filled with water (mu_(g)=4//3). The focal length of the combination is

Two identical glass (mu_(g)=3//2) equi- convex lenses of focal length f each are kept in contact. The space between the two lenses aiisolfilled with water (mu_(g)=4//3). The focal length of the combination is

Two identical glass (mu_(g)=3//2) equi- convex lenses of focal length f each are kept in contact. The space between the two lenses aiisolfilled with water (mu_(g)=4//3). The focal length of the combination is

Two identical equiconvex lenses made of glass of reflected index 1.5 placed in contact has power P . When a liquid of refractive index mu is filled in the gap between the convex lenses, the power becomes of initial value (P//3) . The value of mu is K/3 . Find the value of K

Two identical equiconvex lenses, each of focal length 'f' are placed side by side in contact with each other with a layer of water in between them as shown in the figure. If refractive index of the material of the lenses is greater than that of water, how the combined focal length 'F' is related of 'f'?

Two identical equiconvex lenses, each of focal length f, are placed side by side in contact with each other with a layer of water in between them as shown in the figure. If refractive index of the material of the lenses is greater than that of water, how the combined focal length F is related to f?

Two identical equiconvex lenses of refractive index 3//2 and focal length 16 cm are kept in contact. The space between the lenses is filled with water of refractive index 4//3 . What is the focal length of the combination ?

Two identical equiconvex lenses of refractive index 3/2 and focal length 16cm are kept in contact. The space between the lenses is filled with water of refractive indext 4/3 . What is the focal length of the combination?