Question

An object is placed at 4 cm distance in front of a concave mirror of radius of curvature 24 cm. Find the position of image. Is the image magnified?

Answer 1

Object distance (u) = -4 cm

Radius of curvature (R) = -24 cm

⇒ Focal length (f) = \(\frac{-24}2\) = 12 cm

Let the image distance be 'v' then

∴ The image is formed 6 cm behind the mirror.

Now, magnification (m) = \(-\frac vu\)

Or, m = \(-\frac 6{-4}\) = 1.5

Yes, the image is magnified.