Home
Class 12
PHYSICS
A double convex lens made of air,with bo...

A double convex lens made of air,with both radii of curvatures being "10cm" ,is placed in a medium of refractive index "1.5" .The focal length and nature of the lens is (A) "15cm," convex (B) ",15cm," concave (C) infinity,convex (D) zero,convex

Promotional Banner

Similar Questions

Explore conceptually related problems

The radii of curvatures of a double convex lens are 15 cm and 30 cm, and its refractive index is 1.5. Then its focal length is -

The radius of curvature for a convex lens is 40 cm , for each surface. Its refractive index is 1.5. The focal length will be

The radii of curvature of double convex lens are 30 cm and 60 cm and its refractive index is 1.5 .Calculate its focal length.

The radius of curvature of convex surface of a piano convex is.15 cm and refractive index of the lens is 1.6. The power of the lens is—

A double convex lens has radii of curvature equal to 10 cm and 15 cm of the two faces. Given the focal length of lens is 12 cm, calculate the refractive index of glass.

The radii of curvature of a double convex lens are 30 cm and 60 cm and its refractive index is 1.5. calculate its focal length.

A plano-convex lens is made of material having refractive index 1.5. The radius of curvature of curved surface is 60 cm. The focal length of the lens is ______ cm.

A plano-convex lens is made of material having refractive index 1.5. The radius of curvature of curved surface is 60 cm. The focal length of the lens is ______ cm.

If in a planoconvex lens, the radius of curvature of the convex surface is 10cm and the focal length is 30 cm , the refractive index of the material of the lens will be