Download Light and Optics Unit

Light and Optics Unit
Part 1 (Chapter 11. 2, 11.4-11.9)
For the test, you should:
 know the ray model of light
 understand and apply the terms transparent, translucent, and opaque
 understand and apply the terms specular and diffuse reflection
 Reflection from a Plane Mirror
 understand and apply the terms angle of incidence, angle of reflection, normal,
incident ray, reflected ray
 be able to explain (and draw) how an image is formed in a plane mirror (also what
type of image it is, where it is, and understand that it is laterally inverted)
 be able to draw the mirror image of a word
 Curved Mirrors
understand and apply the terms center of curvature, focus, focal length, principal axis,
and vertex as they apply to curved mirrors
understand the difference between concave (converging) and convex (diverging
mirrors)
be able to locate the image of an object using ray diagrams and describe its
characteristics using SALT (size, attitude, location, type)
be familiar with the characteristics of an image (using SALT) based on the location
of the object without drawing the diagram (example: objects inside the focal length
always make upright, large, virtual images - see table on pg.499)
be able to use the mirror equation to determine the characteristics of an image
1
1
1


f d0 bject dimage
Magnification : M 
himage
hobject

dimage
dobject
NOTE:  focal length is negative if the mirror is diverging
 distance of image is negative if image is virtual
 height of image is negative if inverted
be able to state, explain, and draw applications of
concave mirrors: headlights, telescopes, satellite dishes, parabolic cooker,
makeup mirrors, and flashlights
convex: rearview mirrors and security mirrors
Types of Light:

be able to identify the different sources of light from the definition (e.g.
incandescence, electric discharge, phosphorescence, fluorescence,
chemiluminescence, bioluminescence, triboluminescence)
Electromagnetic Spectrum:
 be able to characterize the different types of the electromagnetic spectrum based on
their characteristic wavelengths and frequency and detail their uses (e.g. shortest
wavelength or highest frequency, what are uses for each type )