Question

An object of is placed at a distance of 1o cm from a convex mirror of focal length 5 cm .
(1) Draw a ray diagram showing the formation of image.
(2) State two characteristics of the image formed.
(3)Calculate the distance of the
image from mirror.
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Answer 1

3.

$\frac{1}{v} + \frac{1}{u} = \frac{1}{f} \\ \frac{1}{v} + \frac{1}{10} = \frac{1}{5} \\ \frac{1}{v } = \frac{1}{5} - \frac{1}{10} \\ \frac{1}{v} = \frac{ - 1}{5}$