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Concave and Convex Lenses
Author:
Dr Mark Fernihough
,
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
alg2_05_05_04_applet_exp_fxn_flvs
Poorly Drawn Parallelograms
Poorly Drawn Parallelograms 3
Icosahedron1
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Discover Resources
Tree Diagram1
node-provide-logo-geometry
Arithmetic mean...
Conditions for congruent triangles
Ladybug animated RO Maria
Discover Topics
Logarithm
Derivative
Inequalities
Parallelogram
Quadrilaterals