An object is placed 20cm from a concave mirror of focal length 15cm. Calculate the linear magnification of the image formed? By: Sunday|Published on: Jan 25|Categories: Physics WAEC| 0 comments A. 0.5 B. 1.5 C. 2.0 D. 3.0 Correct Answer: Option D D. 3.0 Using lens formula Users Also Read These:A concave mirror of radius of curvature 20cm has a…An object is placed 5 cm from the pole of a concave…The real image of an object formed by a converging…An object of heights 5cm is placed at 20cm from a…The focal length of a concave mirror is 2.0cm. If an…SEE ALSO The process by which a metal, heated to high temperature, gives off electrons from its surface is known as