Question

A 12. 0 cm object is 9. 0 cm from a convex mirror that has a focal length of -4. 5 cm. What is the distance of the image from the mirror? –3 cm –4 cm 3 cm 4 cm.

Answer 1

A mirror equation is an equation that relates object distance and image distance to focal length. The distance of the image from the mirror will be -3 cm.

What is a mirror equation?

A mirror equation is an equation that relates object distance and image distance to focal length. It's sometimes referred to as a mirror formula.

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

The given data in the problem is;

f is the focal length =  -4. 5 cm

u is the object distance=12. 0 cm

v is the image distance =?

$\rm \frac{1}{v} +\frac{1}{12.} =\frac{1}{-4.5} \\\\ \rm \frac{1}{v}= \frac{1}{-3} \\\\ \rm v= -3cm$

Hence the distance of the image from the mirror will be -3 cm.

To learn more about the mirror equation refer to the link;

https://brainly.in/question/31545592