Term
In a concave spherical mirror, what are the only things reflected through the focal point? |
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Definition
parallel rays that are close to the principal axis |
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Term
Where do other rays (not parallel) converge at? |
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Definition
point closer to the mirror's surface |
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Term
image defect of a spherical mirror that does not allow parallel light rays far from the principal axis to converge at the focal point and produces an image that is fuzzy, not sharp |
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Definition
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Term
Why does a perfectly parabolic mirror eliminate spherical aberration? |
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Definition
parabolic mirrors focus all parallel rays at a point |
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Term
What is formed behind the mirror when an object is located between the focal point and a spherical concave mirror? |
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Definition
a virtual image that is upright and larger compared to the object |
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Term
What is an example of a concave mirror? |
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Definition
inner surface of a shiny spoon |
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Term
What is a good example of a convex mirror? |
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Definition
outer surface of a shiny spoon |
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Term
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Definition
reflective surface with edges that curve away from the observer |
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Term
What kind of image does a convex mirror show? |
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Definition
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Term
What do rays reflected from a convex mirror always do? |
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Definition
diverges or spread apart so they form virtual images |
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Term
In a convex mirror, what are behind the mirror? |
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Definition
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Term
In a convex mirror, what are negative? |
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Definition
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Term
How are objects perceived in a convex mirror? |
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Definition
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Term
What doe convex mirrors in large so that an observer can see? |
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Definition
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Term
What are convex mirrors often used for? |
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Definition
passenger side rearview mirrors |
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Term
What kind of images are always behind the mirror so that image position is negative? |
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Definition
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Term
What does negative magnification mean? |
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Definition
image is inverted relative to the object |
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Term
What kind of images do only single plane mirrors and convex mirrors produce? |
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Definition
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Term
What kind of reflections doe plane mirrors give? |
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Definition
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Term
What do convex mirrors do? |
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Definition
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Term
What do concave mirrors act as when an object is within focal long of the mirror? |
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Definition
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Term
half the radius of curvature of the mirror |
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Definition
restating focal length (f) |
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Term
What is an example of a virtual image? |
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Definition
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Term
Where are angles of reflection and incidence equal? |
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Definition
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Term
In a plane mirror what is true about virtual images and the actual object? |
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Definition
the image that forms is the same size as the object and erect and is formed at the same distance behind the mirror that the object is in front of the mirror |
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Term
Due to what is the path of light bent as it crosses the boundary between two media? |
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Definition
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Term
What does the amount of refraction depend on? |
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Definition
properties of two media and angle at which light strikes the boundary |
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Term
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Definition
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Term
angle at which the light ray strikes the surface |
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Definition
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Term
angle at which transmitted light leaves the surface |
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Definition
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Term
When do light rays travel more slowly and the refracted rays are bent word the normal? |
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Definition
when they enter a more optically dense medium |
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Term
What is is smaller than the angle of incidence? |
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Definition
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Term
ray of light bends in such a way that the ratio of the sine of the angle of incidenced to the sine of the angle of refraction is constant |
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Definition
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Term
What is the constant in Snell's law? |
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Definition
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