Sight Correction

  • Created by: Meg.Rice
  • Created on: 27-03-17 16:47
What lens is used to correct short sight?
Diverging Lens
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What lens is used to correct long sight?
Converging Lens
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Where is the focal point of a short sighted lens?
At the eyes faulty far point
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What does the short sighted lens achieve?
Blurry objects at the far point become clearer
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What is a converging lens?
A concave lens - the sides bulge outwards
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What is a diverging lens?
A concave lens - the side fall inwards
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What is the use of a converging lens?
It produces the virtual image of objects 25 cm away
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How come many young children are long sighted?
Becuase their lens has grown quicker than their eye ball
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Other cards in this set

Card 2

Front

What lens is used to correct long sight?

Back

Converging Lens

Card 3

Front

Where is the focal point of a short sighted lens?

Back

Preview of the front of card 3

Card 4

Front

What does the short sighted lens achieve?

Back

Preview of the front of card 4

Card 5

Front

What is a converging lens?

Back

Preview of the front of card 5
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