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01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/05.paraxial-optics/02.paraxial-optics-simple-elements/02.spherical-refracting-surface/03.spherical-refracting-surface-beyond/annex.en.md

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+---
+title: 'new course : beyond'
+published: false
+visible: false
+---
+
+! *YOUR  CHALLENGE*  :  look at the picture, and think of the right answers to the following questions
+!
+! _Do not look at the answer, take time to think, a few days if necessary. The time to build your mental representation of the phenomenon, to formulate it in words is important, a thousand times more important than the ephemeral instant where you read the fews words of the solution._
+!
+! <details markdown=1>
+! <summary>
+! INDICE "key word"
+! </summary>
+! diffusion
+! </details>
+! <details markdown=1>
+! <summary>
+! ANSWER
+! </summary>
+! diffusion
+! </details>
+
+
+!!!! *DIFFICULT POINT* (contribute, or indicate a difficult point of understanding)
+!!!!
+
+!! *BEYOND* (to contribute)
+!!
+
+!! *CULTURAL POINT* (contributor)
+!!
+
+!!! *DO  YOU  MASTER ?*
+!!! <details markdown=1>
+!!! <Summary>
+!!! Describe the test
+!!! </summary>
+!!! The text of the test (and its images, figures, audio, video, etc ...)
+!!!
+!!! Question text
+!!! <details markdown=1>
+!!! <summary>
+!!! Answer choice 1
+!!! </summary>
+!!! Text if this answer 1 is chosen
+!!! </details>
+!!! <details markdown=1>
+!!! <summary>
+!!! Answer choice 2
+!!! </summary>
+!!! Text if this answer 2 is chosen
+!!! </details>
+!!! <!--possibility to add answers, questions-->
+!!! -----
+!!! <details markdown=1>
+!!! <summary>
+!!! Complete solution.
+!!! </summary>
+!!! text of the solution
+!!! </details>