Question

A candle is placed 14 cm in front of a concave mirror. The image of the candle is focused on a sheet of paper that is exactly 21 cm in front of the mirror. what is the magnification of the image

Answer 1

Answer:

The magnification of the image is  $M = -1.5$

Explanation:

From the question we are told that

      The object distance is  $u = 14 cm$

      The image distance is  $v = 21 \ cm$

The magnification of the image is mathematically represented as

        $M = - \frac{v}{u}$

substituting values

       $M = - \frac{21}{14}$

        $M = -1.5$

The negative value means that the image is real , inverted and enlarged