Assertion : The focal length of an equiconvex lens placed in air to radius of curvature of either face.
Reason : For an equiconvex lens radius of curvature of both the faces is same.

Assertion : The focal length of an equiconvex lens placed in air is equal to radius of curvature of either face. Reason : For an equiconvex lens radius of curvature of both the faces is same.

The focal length of an equiconvex lens placed in air is equal to radius of curvature of either surface. Is it true ?

The focal length of equiconvex lens of retractive index, mu=1.5 and radius of curvature, R is

The focal length of equiconvex lens of retractive index, mu=1.5 and radius of curvature, R is

The focal length of an equiconvex lens is equal to radius of curvature of either surface. What is the refractive index of the material of the prism ?

The focal length of a double convex lens is equal to radius of curvature of either surface. The refractive index of its material is

The focal lengtli of a equiconvex lens is 2/3 times the radius of curvature of the surface. What is the refractive index of the medium?