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Card 6

Front

All lenses do what?

Back

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Card 7

Front

What type of lens do you need if you're long-sighted?

Back

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Card 8

Front

An incident ray parallel to the axis will pass through the focal point when it's...what?

Back

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Card 9

Front

What do convex lenses do?

Back

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Card 10

Front

Define axis

Back

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Card 11

Front

Define focal point

Back

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Card 12

Front

Define focal length

Back

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Card 13

Front

A refracting telescope uses how many converging lenses?

Back

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Card 14

Front

An incident ray passing through the focal point will be parallel to the axis when it's...what?

Back

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Card 15

Front

Where are converging lenses used?

Back

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