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14 Cards in this Set
- Front
- Back
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Which types of mirrors produce real images |
only concave mirrors |
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Which types of mirrors produce virtual images |
plane mirrors concave mirrors convex mirrors |
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Which types of lenses produce real images? |
convex lenses |
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Which types of lenses produce virtual images |
concave lenses convex lenses |
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Under what conditions does light bend? |
when it hits a new medium at an angle *note: the new medium must have a different index of refraction |
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What is refraction? |
the bending of light when it hits a new medium |
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Concave lenses always cause light to do what? |
spread out |
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Convex lenses always cause light to do what? |
converge |
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What happens when a material has a small critical angle? |
most of the light will be internally reflected |
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What is happening in this image? |
The light is hitting the critical angle with the glass. This causes the light to travel along the edges of the glass. It also causes it to bend at 90 degrees |
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what are the two main types of telescopes? |
reflecting and refracting telescopes |
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What is the difference between a reflecting telescope and a refracting telescope? |
reflecting telescopes use a mirror, while refracting telescopes use two convex lenses. |
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How does a camera focus? |
by moving the lens to move to focal point onto the film. |
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What are the parts of the eye? |
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