Mirrors and LensesMirrors and LensesChapter 23, Section 1
Mirror and Lens Mirror and Lens AssignmentAssignment
Use p. 668 – 673 in your textDraw the following pictures
◦ Plane mirror◦ Concave mirror◦ Convex mirror◦ Lens◦ Concave lens◦ Convex lens
Define each State what type of image each will formGive an example where each may be used
For each drawing show how light rays interact with the mirror or lens!
What is a ray?What is a ray?It is an arrow that we use to show
the path of a light wave.
Plane MirrorsPlane MirrorsA mirror that has a flat surface (like your
bathroom mirror!)The image is right side up and the same
size as the actual object. The only difference is that it appears backwards!
The image appears to be the same distance from the mirror, just on the other side!
Concave MirrorsConcave MirrorsA mirror that is curved inward.Can create a larger or smaller imageThe image will appear upside downMake-up mirror
Convex MirrorConvex MirrorA mirror that curves outwardIt produces an image that is right
side up and smaller than the original.Useful because they can make
images of large areas.
What is a Plane Lens?What is a Plane Lens?A lens is a transparent object
that forms an image by refracting or bending light.
Cameras, telescopes and movie projectors all use lenses to create images.
Convex LensConvex LensA lens that is
thicker in the middle than at the edges.
Used to MAGNIFY things
Used in magnifying glasses, camera lenses and some eyeglasses.
Used to correct farsightedness
Concave LensConcave LensA lens that is
thinner in the middle than at the edges
Causes light waves to bend away from each other
Used in microscopes, eyeglasses and some telescopes
Used to correct nearsightedness