All about lenses visit compiled by Mr G July 2008.

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Presentation transcript:

All about lenses visit compiled by Mr G July 2008

%20Icon.jpg Describe the shape of typical convex lenses

How are convex lenses used?

v=0 How are convex lenses used?

Typical convex lens diagrams

COPY THIS

Find the focal length of these lenses?, MOVE THE RULER

Copy these 3 eyes down the LHS edge of your page Find a ruler and then complete this picture ?????

Typical convex lens diagrams

How do they work? imagine that you can chunk the convex lens into 3 sections like this...

How do they work? rotate the prism just a bit....

How do they work?

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