Using lenses

  • Created by: Char
  • Created on: 20-05-13 18:04
Why do we draw ray diagrams?
To find the image that different lenses produce with objects in different positions
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What is the principal axis?
The line through the centre of the lens which is at a right angle to it
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How many construction rays are included in a ray diagram?
Three
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What is ray parallel to the principal axis refracted THROUGH?
The principal focus
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Where does the ray through the centre travel?
Straight on, without refraction
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Where is the ray through the principal focus refracted from and to?
Parallel to the principal axis
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What type of image is formed when a camera uses a converging lens?
A real image of an object
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What are the two things it could be formed on to?
Film or an array of CCDs
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Other cards in this set

Card 2

Front

What is the principal axis?

Back

The line through the centre of the lens which is at a right angle to it

Card 3

Front

How many construction rays are included in a ray diagram?

Back

Preview of the front of card 3

Card 4

Front

What is ray parallel to the principal axis refracted THROUGH?

Back

Preview of the front of card 4

Card 5

Front

Where does the ray through the centre travel?

Back

Preview of the front of card 5
View more cards

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