Joe stands 1.4 meter in front of a plane mirror, how high is his real image?
The following instruments and devices are the application of lenses. Please identify if it is CONCAVE LENS or CONVEX LENS
What do we call the distance between the lens and the focal point?
The principal axis is a _______ line drawn through the center of the lens.
Donald sees the reflection of the clock without numbers in a plane mirror. The image formed by the hands of the clock shows the time of 9:30. What is the real time?

As discussed in the previous section of Lesson 2, an image location is the location in space where all the reflected light appears to diverge from. Since light from the object appears to diverge from this location, a person who sights along a line at this location will perceive a replica or likeness of the actual object.

Virtual vs. Real Images

In the case of plane mirrors, the image is said to be a virtual image. Virtual images are images that are formed in locations where light does not actually reach. Light does not actually pass through the location on the other side of the mirror; it only appears to an observer as though the light is coming from this location. Whenever a mirror (whether a plane mirror or otherwise) creates an image that is virtual, it will be located behind the mirror where light does not really come from. Later in this unit, we will study instances in which real images are formed by curved mirrors. Such images are formed on the same side of the mirror as the object and light passes through the actual image location.