Concave and Convex Lenses

作者：Tom Walsh

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.

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Tweede jaar
Unit 4 project- Cali W
การลบจำนวนเต็ม
Nets of Solid Figures (Primary 6)
Perimeter of a Square

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幾何變換
錐體
外接圓
特殊點
直方圖

Concave and Convex Lenses

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