Question

A CONCAVE MIRROR HAS AFOCAL LENTH OF 15 CM WHERE SHOULD AN OBJECT BE PLACED IN FRONT OF THIS CONCAVE MIRROR SO AS TO OBTAIN AN IMAGE WHICH IS REAL,INVERTED AND SAME SIZE AS THE OBJECT?

Answer 1

Dear student
Object should be placed at the radius of curvature of the mirror to get the real , inverted and same size image ,
as we know radius of curvature is double of focal length i.e. 2f = R
R = 2$\times$ 15
R = 30cm
object should be placed at 30cm.
Regards