Question

In the geometrical setup for refraction at a spherical surface, the centre of curvature, object distance, image distance, and radius of curvature are denoted respectively by:

Options

• F, u, v, C

• P, v, u, f

• O, R, C, u

• C, u, v, R

Answer 1

In the geometrical setup, an object point O lies on the principal axis of a spherical surface separating medium 1 (refractive index n₁) and medium 2 (refractive index n₂). The centre of curvature is C, the object distance is u, the image distance is v, and the radius of curvature is R.