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10 Cards in this Set
- Front
- Back
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coherent light
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A beam of light in which all the electromagnetic waves travel with the crests and troughs aligned; thus, the beam does not spread out.
p 575 |
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focal length
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The distance from the center of a lens or mirror to its focal point.
p559 |
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focal point
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A point on the optical axis of a concave mirror or convex lens where the light rays come together.
p559 |
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optical fiber
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Transparent glass fiber that can transmit light from one place to another
p 578 |
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polarized light
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Light in which the transverse waves vibrate only along one plane
p574 |
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real image
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An image produced where light rays converge, as with a concave mirror or convex lends; a real image is real, enlarged, upside-down, and can be projected onto a screen
p559 |
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telephoto lens
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A lens having a long focal length and producing an enlarged, close-up image of an object.
p575 |
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total internal reflection
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Occurs when all the light striking a surface between two materials is reflected totally back into the first material
p577 |
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virtual image
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An image formed of diverging light rays, as in a plane or convex mirror, or seen through a concave lens.
A virtual image can't be projected onto a screen. |
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wide-angle lens
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A lens with a short focal length that produces a relatively small image of an object, but includes much of the object's surroundings
p571 |
