A concave mirror produces three times magnified real image of an object placed at 10 cm in front of it. Where is the image located ?

Explanation

In this problem we have been given magnigication (m) and object distance (u). We are to find out the image distance (v). Now,
Magnification, m=-3 (Image is real)
Object distance, u = -10 cm (To the left of mirror )
And, Image distance, v = ? ( To be calculated )
Putting these values in the magnification formula for a mirror :
`m=-v/u`
`"We get : "-3= -v/(-10)`
`-3xx -10 = -v`
v = - 30 cm
Thus, the image is located at a distance of 30 cm in fornt of the mirror (on its left side).