Answer the following questions related to spherical mirrors.
PHYSICS · Multi-part · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments
Problem
Answer the following questions related to spherical mirrors.
(i) With the help of a labelled ray diagram, explain why the radius of curvature of a spherical mirror is numerically twice its focal length.
(ii) Using the Cartesian sign convention, distinguish between the algebraic signs of radius of curvature and focal length for concave and convex mirrors.
(iii) A spherical mirror has a radius of curvature of −24cm. Identify the type of mirror and write its focal length with sign.