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Katie Maguire
Powerpoint questions for Chapter 29
Question | Answer |
---|---|
What happens when a wave is totally reflected? | All of the wave's energy bounces back. |
If the wave is only partially reflected then the second medium must be... | less rigid |
Why are metals such as silver and aluminum so shiny? | Light does not propagate into metal. It is returned in a reflected wve. |
What is the relationship between the angle of incidence and the angle of reflection? | The angle of incidence always equals the angle of reflection. |
When you look in the mirror, why is the color of the image always the color of the object? | The frequency of light is not changed by reflection. |
A flat mirror is also called a... | Plane mirror |
Where do divergent rays seem to originate? | From behind the mirror. |
Where does a virtual image appear to be? | In a location where light does not really reach |
Which mirror curves outward and is used for security purposes? | Convex |
Which mirror curves inward and is used for applying makeup? | Concave |
Which mirror is flat and is used in dressing rooms? | Plane |
Virtual images are always... | Upright |
How are real images formed? | By converging light rays |
What is an echo? | Reflected sound |
What is the only kind of mirror that can produce inverted images? | Concave |