Answer
22 cm
Work Step by Step
Given: Image distance v= -26 cm
Focal length f= -12 cm
According to the mirror equation:
Object distance $u= \frac{vf}{v-f}$.
Thus, we find:
$u=\frac{-26\times-12}{-26-(-12)}cm\approx -22 cm$.
The object is located at a distance of 22 cm in front of the mirror.
