Intext example problem I — task. Science State Board, Class 9.

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Find the position of the image formed when an object of height $1$ $cm$ is placed at a distance of 15 $cm$ from a concave mirror of focal length 10 $cm$.

A) The position of the image is found by using the formula

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

By applying the value of $f$ and $u$

The position of the image is $cm$ in front of the mirror.

The sign indicates the image is formed in front of the mirror.

B) The magnification of the image is found by using the formula

$m = - \frac{v}{u}$
$m = \frac{v}{u}$

By applying the known values in the formula, we get

$m$ $=$

The height of the image is $cm$

(Answer should be in whole number)

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4. Intext example problem I

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