PHYSICS · Multi-part · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction
Problem
A diverging lens is marked with a power of −2.5 D. An object is kept 40 cm in front of this lens along the principal axis.
Follow the usual Cartesian sign convention.
(i) Convert the given power into focal length expressed in centimetres.
(ii) Calculate the position of the image formed by the lens.
(iii) Determine the magnification produced and comment on the nature of the image.