282402 A convex lens of focal length \(10 \mathrm{~cm}\) and refractive index 1.5 is dipped in a liquid of refractive index 1.75. It will behave as

282403 An equi-convex lens has power \(P\) it is cut into two symmetrical halves by a plane containing the principal axis. The power of one part will be

282404 A double convex lens has focal length \(25 \mathrm{~cm}\). The radius of curvature of one of the surfaces is double of the other. find the radii, if the refractive index of the material of the lens is 1.5.

282405 Two similar thin equi-convex lenses, of focal length \(f\) each, are kept co-axialy in contact with each other such that the focal length of the combination is \(F_1\), When the space between the two lenses is filled with glycerine (which has the same refractive index \((\mu=1.5)\) as that of glass) then the equivalent focal length is \(F_2\). The ratio \(\mathrm{F}_1: \mathrm{F}_2\) will be

282402 A convex lens of focal length \(10 \mathrm{~cm}\) and refractive index 1.5 is dipped in a liquid of refractive index 1.75. It will behave as

282403 An equi-convex lens has power \(P\) it is cut into two symmetrical halves by a plane containing the principal axis. The power of one part will be

282404 A double convex lens has focal length \(25 \mathrm{~cm}\). The radius of curvature of one of the surfaces is double of the other. find the radii, if the refractive index of the material of the lens is 1.5.

282405 Two similar thin equi-convex lenses, of focal length \(f\) each, are kept co-axialy in contact with each other such that the focal length of the combination is \(F_1\), When the space between the two lenses is filled with glycerine (which has the same refractive index \((\mu=1.5)\) as that of glass) then the equivalent focal length is \(F_2\). The ratio \(\mathrm{F}_1: \mathrm{F}_2\) will be

282402 A convex lens of focal length \(10 \mathrm{~cm}\) and refractive index 1.5 is dipped in a liquid of refractive index 1.75. It will behave as

282403 An equi-convex lens has power \(P\) it is cut into two symmetrical halves by a plane containing the principal axis. The power of one part will be

282404 A double convex lens has focal length \(25 \mathrm{~cm}\). The radius of curvature of one of the surfaces is double of the other. find the radii, if the refractive index of the material of the lens is 1.5.

282405 Two similar thin equi-convex lenses, of focal length \(f\) each, are kept co-axialy in contact with each other such that the focal length of the combination is \(F_1\), When the space between the two lenses is filled with glycerine (which has the same refractive index \((\mu=1.5)\) as that of glass) then the equivalent focal length is \(F_2\). The ratio \(\mathrm{F}_1: \mathrm{F}_2\) will be

282402 A convex lens of focal length \(10 \mathrm{~cm}\) and refractive index 1.5 is dipped in a liquid of refractive index 1.75. It will behave as

282403 An equi-convex lens has power \(P\) it is cut into two symmetrical halves by a plane containing the principal axis. The power of one part will be

282404 A double convex lens has focal length \(25 \mathrm{~cm}\). The radius of curvature of one of the surfaces is double of the other. find the radii, if the refractive index of the material of the lens is 1.5.

282405 Two similar thin equi-convex lenses, of focal length \(f\) each, are kept co-axialy in contact with each other such that the focal length of the combination is \(F_1\), When the space between the two lenses is filled with glycerine (which has the same refractive index \((\mu=1.5)\) as that of glass) then the equivalent focal length is \(F_2\). The ratio \(\mathrm{F}_1: \mathrm{F}_2\) will be