The focal length of a convex lens is 10 cm and its refractive index is 1.5 .If the radius of curvature of one surface is 7.5 cm ,the radius of curvature of the second surface will be
The focal length of a convex lens is 10 cm and its refractive index is 1.5 .If the radius of curvature of one surface is 7.5 cm ,the radius of curvature of the second surface will be
View Solution
Q2
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
[MP PMT 1989]
View Solution
Q3
If in a plano-convex lens, radius of curvature of convex surface is 10cm and the focal length of lens is 30cm, the refractive index of the material of the lens will be
View Solution
Q4
The radius of curvature of a thin plano-convex lens is 10cm (of curved surface) and the refractive index is 1.5. If the plane surface is silvered, then the focal length will be
View Solution
Q5
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