P3, Lenses

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  • Created by: emmajane_
  • Created on: 17-05-14 15:17
What is Refraction?
The change of a direction of light as it passes through one median to another
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How does a lens form an image?
Through refraction of light
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What is focal length?
The distance from the lens to the principal focus
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What do converging and convex lenses have in common?
parallel rays of light are brought to a focus at a principal focus
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What does i and r stand for?
i= angle of incidence r= angle of refraction
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What is trhe nature of an image defined by?
Its size relative to the object, whether it is upright or inverted and whether it's real or virtual
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What is a converging lens used for?
A magnifying glass
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Name 2 types of natures of lenses
Concave or diverging lenses
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What is the nature of an image produced by a converging lens like?
Objects are placed at different distances from the lens
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Other cards in this set

Card 2

Front

How does a lens form an image?

Back

Through refraction of light

Card 3

Front

What is focal length?

Back

Preview of the front of card 3

Card 4

Front

What do converging and convex lenses have in common?

Back

Preview of the front of card 4

Card 5

Front

What does i and r stand for?

Back

Preview of the front of card 5
View more cards

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