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Chapter 29 Questions

What is the Law of Reflection? the angle of incidence=the angle of reflection
What happens when a wave reaches a boundary between two medias? Usually some or all of the wave bounces back into the first medium.
True or False. Plane mirrors only produce virtual images? True.
What happens when light is incident on a rough surface? It is reflected in many directions.
True or False. Sound energy not reflected is absorbed or transmitted. True.
Materials such as ____ and ___ are not as rigid to light waves. glass and water
What is the shape of a plane mirror? flat.
What is the shape of a convex mirror? curved out (
What is the shape of a concave mirror? curved in )
What type of image does a concave (far away) make? real or inverted
What is an example of a concave (close up) mirror? A makeup mirror.
What is reflected sound called? An echo.
What is most important to remember about metals and light waves? Metals surfaces are rigid to light waves, light energy is reflected back and makes metals look shiny, and they contain all frequencies of visible light.
What happens when light shines perpendicularly on the surface of still water? 2 percent of its energy is reflected and the rest is transmitted.
What happens when light strikes glass perpendicularly? 4 percent of the energy is reflected and except for a slight losses, the rest is transmitted.
Created by: kwertenberge