Answer:
30.0 cm
Explanation:
We can use the mirror equation:
[tex]\frac{1}{f}=\frac{1}{p}+\frac{1}{q}[/tex]
where
f = +15.0 cm is the focal length of the mirror
p = 30.0 cm is the distance of the object from the mirror
q is the distance of the image from the mirror
Solving the equation for q, we find
[tex]\frac{1}{q}=\frac{1}{f}-\frac{1}{p}=\frac{1}{15.0 cm}-\frac{1}{30.0 cm}=\frac{1}{30.0 cm}\\q = 30.0 cm[/tex]
