If the magnification of a body of size $1\, m$ is $2$,what is the size of the image (in $m$)?

The magnification of a mirror is $+1$. What does it mean?

Define lateral magnification.

Write the relationship between object distance $(u)$,image distance $(v)$,and focal length $(f)$ for a spherical mirror.

$A$ $10\, mm$ long awl pin is placed vertically in front of a concave mirror. $A$ $5\, mm$ long image of the awl pin is formed at $30\, cm$ in front of the mirror. The focal length of this mirror is ......... $cm$.

$A$ concave mirror produces a three times magnified (enlarged) real image of an object placed at $10 \, cm$ in front of it. Where is the image located (in $cm$)?