Upload
edwin-baldwin
View
215
Download
0
Embed Size (px)
Citation preview
Law of reflection
Watch the next 5 slides for Part IV
Reflecting Light Off Surfaces
When a series of parallel incident rays strike a flatreflective surface • the incidence angles are all identical• angle of reflection will also be identical reflected raysIncident rays
2
If parallel incident rays were directed at an irregular
surface, they will have different incidence angles.
The reflected rays will be reflected in many directions.
This is known as diffuse reflection
Incident rays Reflected rays
3
Locating images in a Plane Mirror
object
mirror
Image of object
reflected
incident
4
brain traces
Virtual sideReal side
• LOST is used to describe images formed by mirrors.1. L- Location: location of the image (in front or
behind the mirror).2. O- Orientation: which way the image is oriented
compared to the original object (upright or inverted).
3. S- Size: compared to original object is it same size, reduced, or magnified?
4. T- Type: is the image a real image or virtual image?
L.O.S.T.
5
• Properties of a plane mirror image:
1. Object distance from mirror= image distance from mirror
2. Orientation is ALWAYS upright3. Object size = Image Size4. ALWAYS forms a virtual image5. Image is reversed left to right (this is true for
all reflections)
PLANE MIRRORS
6
Acknowledgements
• edited by Mr. Teters from original by Dr. Ochran from http://raochran.com/SNC2D/Physics/Powerpoint%20Files/Laws%20of%20Reflection.ppt