Question

If the object distance for a concave mirror is 24 cm and image distance is 12 cm in front of a mirror. Then, find the magnification of the mirror.

Answer 1

Given that; 

Object distance (u) = -24cm;

 Image distance (v) = -12cm (image is in front of mirror hence v is negative). 

Now; 

Magnification = - \(\frac{v}{u}\)

⇒ Magnification = - \(\frac{-12}{-24}\) = - \(\frac12\)

∴ Magnification is -0.5. Which tells that image is real and inverted and half of the size of the object.