The focal length of a lens depends on |
The radii of curvature of its surfaces and the refractive index of the lens with respect to surrounding medium. Only the radii of curvature of its surface and the absolute refractive index of its material. Only the radii of curvature of its surface and the refractive index of the surrounding medium. Only the radii of curvature of its surface. |
The radii of curvature of its surfaces and the refractive index of the lens with respect to surrounding medium. |
The correct answer is Option (1) → The radii of curvature of its surfaces and the refractive index of the lens with respect to surrounding medium. |