REMARKS The negative value of qindicates the image is virtual, or behind the mirror. The image isupright because M is positive.
QUESTION Is the image that a convex mirrorproduces real or virtual?
The image is always real.It depends on the focal length of themirror.Ă‚Â Ă‚Â Ă‚Â Ă‚Â The image is always virtual.Itdepends on the distance to the object.
PRACTICE IT
Use the worked example above to help you solve this problem. Anobject 3.13 cm high is placed 20.1 cm from a convex mirror with afocal length of 7.70 cm.
(a) Find the position of the image.
cm
(b) Find the magnification of the mirror.
(c) Find the height of the image.
cm
EXERCISEHINTS:Ă‚Â Ă‚Â GETTINGSTARTEDĂ‚Â Ă‚Â |Ă‚Â Ă‚Â I'M STUCK!
Suppose the object is moved so it is 3.85 cm from the samemirror. Repeat parts (a) through (c).
(a) q =Ă‚Â Ă‚Â cm
(b) M =
(c) h' =Ă‚Â Ă‚Â cm
The image is  ---Select--- upright and virtual invertedand virtual inverted and real upright and real .
