Hallo guest
It is so easy
Now it is correct!
This is the right side, sorry
https://phet.colorado.edu/de/simulation/legacy/geometric-optics
Look here
file:///C:/Users/Christel/AppData/Local/Temp/phet-geometric-optics/geometric-optics_de.html
Hallo guest, I hope is is ok so?
106207
Vielleicht nützt Dir meine Erklärung auch noch.
4 sisters!
