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Chapter 29-Allison
15 questions
| Question | Answer |
|---|---|
| Does light travel through a mirror, and if not, what happens? | No, it is returned by the mirror's surface. These waves are reflected. |
| When waves strike the surface of a transparent medium, like water, at an angle, these direction changes. What are these waves called? | These waves are called reftracted waves. |
| When light strikes glass perpendicularly, about what percentage of its energy is reflected? | About 4% of its energy is reflected. |
| When light shines perpendicularly on the surface of still water, about what percentage of its energy is reflected? | About 2% of its energy is reflected. |
| What does the law of reflection state? | It states that the angle of incidence and the angle of reflection are equal to eachother. |
| What is the name of the line that is perpendicular to the point where incident ray strikes the barrier, that is drawn with a dashed line? | That line is called the normal. |
| What two angles are equal to eachother? | the two angles that are equal, is the angle of reflection and the angle of incidence. |
| Each of the infinate numbers of rays on rough surface...... | obeys the law of reflection. |
| What does diverge mean? | Diverge means to spread apart. |
| Where do the diverging waves appear to originate from? | They originte from a point located behind the mirror. |
| What type of image appears to be in location where light does not really reach? | This type of image is called a virtual image. |
| what type of mirror produces only virtual images? | Plane mirrors |
| Can your eye ordinarily tell the difference between an object and its virtual object? | No, your eyes can not. |
| How far back is the image in the mirror, compared to the front of the mirror? | The distance is the same. |
| What type of mirror is used for a make-up mirror? | the type of mirror used for a make-up mirror is a concave mirror. |
Created by:
Allison Kay Hupfeld
on 2010-02-10