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GeoGebra
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GeoGebra
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Concave and Convex Lenses
Author:
Tom Walsh
GeoGebra
Move the tip of the "Object" arrow to move the object. Move the point named " Focus' " to change the focal length. Move the point named " Focus' " to the right side of the lens to change to a concave lens.
New Resources
Icosahedron1
Tutorial: Create lists of numbers and objects
Poorly Drawn Parallelograms 2
Variation Theory Parallelogram Proofs
Blancmange curve (fractal)
Discover Resources
Courbes de Bézier
Fraction Machine
Draw a Graph
Double Folium
Riemann-Summen
Discover Topics
Binomial Distribution
Orthocenter
Root
Limits
Indefinite Integral