A concave mirror of focal length 12 cm forms a virtual
PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction
Problem
A concave mirror of focal length 12 cm forms a virtual, erect image that is twice the height of the 2.0 cm tall object. What is the object distance from the mirror (u) according to the Cartesian sign convention?
(a) +6cm
(b) −6cm
(c) −8cm
(d) −18cm