Image Formation by a Diverging Mirror
(It does not run with Java versions released after 2015)
Move the red object using the mouse. A diverging mirror always forms an
upright virtual image. The image appeares on the right of the mirror as
a gray arrow.
This applet shows the basics of the Convex Mirror.
The yellow lines represent the three rays of light
needed to form the image are as follows:
One comes from the object and travels parallel to the principal
axis and therefore appears to originate from the focal point
after reflection from the mirror.
The second ray heads toward F, emerging parallel to the principal
axis after reflection.
The third ray travels toward the center of curvature
as a result it strikes the mirror perpendicularly and reflects
back on itself.
The green lines are the virtual rays
as they appear to an observer.
The gray lines are light rays.
The red arrow is the object and the gray arrow is the
resulting virtual image. You can move the object by either draging it
or by clicking to the location of your choice.
© Copyright 1997,
Last modified: June 20, 1997