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Optics Review
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Diamonds sparkle because of ...
Total internal reflection
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Name one example of diffuse reflection
Objects we see in everyday life, crumpled up aluminum foil, etc.
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What does it mean to diverge?
To come apart in different directions
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The angle of incidence and the angle of reflection are always ________?
Equal
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Light is ?
an electromagnetic wave that moves in a straight line
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Refraction and Reflection never happen at the same time. True or false?
False
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Name one example of specular reflection
Light shined at a clean flat mirror; The sky reflected off a calm lake
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Name one source of light from a natural source
???
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Glow-in-the-dark stuff is an example of what source of light?
Phosphorescence
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A crime-scene investigator shines a UV light around a room, and sees a splotch of light on the ground. What is this effect called?
Fluorescence
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The ratio of light speed in a vacuum to light speed in a medium is called?
The index of refraction
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When light speeds up, it bends towards the normal. True or false?
False
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The light from glowsticks is an example of?
Chemiluminescence
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What speed does light travel at in a vacuum?
3*10^8 m / s
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Is the index of refraction of diamond high or low?
High
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What 3 rays do we draw when we draw a ray diagram for a convex mirror?
Towards the focus, towards the center of curvature, and parallel to the principal axis.
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What does it mean to "converge"
to come together at a single point
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Bioluminescence is?
light produced from chemical reactions in living organisms
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What kind of image will a concave mirror produce when an object is placed at F?
No image.
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Two quartz crystals are rubbed together and produce some light. What is this called?
Triboluminescence
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When speaking of sources of light, a mirror is what kind of source of light?
Non-luminous
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Is incandescent light hot or cold?
Hot
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What kind of an image will a converging mirror produce when an object is placed between F and the mirror?
Larger, upright, behind the mirror, virtual
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What kind of image will a diverging mirror produce?
Smaller, upright, behind the mirror, virtual
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