Question

The image of an object placed at a distance of 25 cm on the principal axis of a concave mirror from its pole, is formed on the object itself. Find out the linear magnification.

• A. -1
• B. 1
• C. -2
• D. 2

Answer 1

The correct option is A -1

u=25 cm v= 25 cm

since the object and image are in front of the mirror

so, u= -25 and v=-25

magnification = m = $-\frac{v}{u}$ =$-\frac{-25}{-25}$= -1