Curved lenses and mirrors

This is exercise for curved lenses and mirrors.

Convex lens

In this exercise you can adjust focal length of the lens and the refractive index of material.


<Show embed code>

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Number line

Number line

Number line can be tricky. In this app you have to solve what number X represents.

<Show embed code>

<iframe fullscreen="" height="270px" scrolling="no" src="https://www.geogebra.org/material/iframe/id/frqu5kvw/width/700/height/270/border/000000/rc/false/ai/false/sdz/false/smb/false/stb/false/stbh/false/ld/false/sri/false" style="border: 0px;" width="700px"> </iframe>