Bildkonstruktion am sphärischen Konvexspiegel
About points...
We associate a certain number of points with each exercise.
When you click an exercise into a collection, this number will be taken as points for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit the number of points for the exercise in the collection independently, without any effect on "points by default" as represented by the number here.
That being said... How many "default points" should you associate with an exercise upon creation?
As with difficulty, there is no straight forward and generally accepted way.
But as a guideline, we tend to give as many points by default as there are mathematical steps to do in the exercise.
Again, very vague... But the number should kind of represent the "work" required.
When you click an exercise into a collection, this number will be taken as points for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit the number of points for the exercise in the collection independently, without any effect on "points by default" as represented by the number here.
That being said... How many "default points" should you associate with an exercise upon creation?
As with difficulty, there is no straight forward and generally accepted way.
But as a guideline, we tend to give as many points by default as there are mathematical steps to do in the exercise.
Again, very vague... But the number should kind of represent the "work" required.
About difficulty...
We associate a certain difficulty with each exercise.
When you click an exercise into a collection, this number will be taken as difficulty for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit its difficulty in the collection independently, without any effect on the "difficulty by default" here.
Why we use chess pieces? Well... we like chess, we like playing around with \(\LaTeX\)-fonts, we wanted symbols that need less space than six stars in a table-column... But in your layouts, you are of course free to indicate the difficulty of the exercise the way you want.
That being said... How "difficult" is an exercise? It depends on many factors, like what was being taught etc.
In physics exercises, we try to follow this pattern:
Level 1 - One formula (one you would find in a reference book) is enough to solve the exercise. Example exercise
Level 2 - Two formulas are needed, it's possible to compute an "in-between" solution, i.e. no algebraic equation needed. Example exercise
Level 3 - "Chain-computations" like on level 2, but 3+ calculations. Still, no equations, i.e. you are not forced to solve it in an algebraic manner. Example exercise
Level 4 - Exercise needs to be solved by algebraic equations, not possible to calculate numerical "in-between" results. Example exercise
Level 5 -
Level 6 -
When you click an exercise into a collection, this number will be taken as difficulty for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit its difficulty in the collection independently, without any effect on the "difficulty by default" here.
Why we use chess pieces? Well... we like chess, we like playing around with \(\LaTeX\)-fonts, we wanted symbols that need less space than six stars in a table-column... But in your layouts, you are of course free to indicate the difficulty of the exercise the way you want.
That being said... How "difficult" is an exercise? It depends on many factors, like what was being taught etc.
In physics exercises, we try to follow this pattern:
Level 1 - One formula (one you would find in a reference book) is enough to solve the exercise. Example exercise
Level 2 - Two formulas are needed, it's possible to compute an "in-between" solution, i.e. no algebraic equation needed. Example exercise
Level 3 - "Chain-computations" like on level 2, but 3+ calculations. Still, no equations, i.e. you are not forced to solve it in an algebraic manner. Example exercise
Level 4 - Exercise needs to be solved by algebraic equations, not possible to calculate numerical "in-between" results. Example exercise
Level 5 -
Level 6 -
Question
Solution
Short
Video
\(\LaTeX\)
No explanation / solution video to this exercise has yet been created.
Visit our YouTube-Channel to see solutions to other exercises.
Don't forget to subscribe to our channel, like the videos and leave comments!
Visit our YouTube-Channel to see solutions to other exercises.
Don't forget to subscribe to our channel, like the videos and leave comments!
Exercise:
Konstruiere für die Gegenstände in den folgen Skizzen so genau wie möglich das Bild welches am jeweils abgebildeten sphärischen Spiegel entsteht indem du alle wesentlichen/speziellen Strahlen die von den Spitzen der Gegenstandpfeile ausgehen einzeichnest. center tikzpicturestealth scope % Grid drawhelp lines step. -- grid ; % Definitions defSpAngl defSpRadi NewQtyr- SolQtyfrX/ NewQtyg NewQtyG SolQtyb/fX-/gX^- SolQtyB-GX/gX*bX coordinate G at gX; coordinate F at fX; % optische Achse drawdashed colorgreen!!black ---; % Konkavspiegel draw ---; filldrawpatternhorizontal lines - arc:-:.---.---cycle; draw - arc:-:.; filldrawpatternhorizontal lines arc::.---.--cycle; draw arc::.; % Spezielle Punkte filldrawcolorgreen!!black fillgreen!!black fX circle . nodebelow f; % Gegenstands-Pfeil drawthick colorred - gX--gXGX; scope scopexshiftcm % Grid drawhelp lines step. -- grid ; % Definitions defSpAngl defSpRadi NewQtyr SolQtyfrX/ NewQtyg NewQtyG SolQtyb/fX-/gX^- SolQtyB-GX/gX*bX coordinate G at gX; coordinate F at fX; % optische Achse drawdashed colorgreen!!black ---; % Konkavspiegel draw ---; filldrawpatternhorizontal lines - arc::.--.---cycle; draw - arc::.; filldrawpatternhorizontal lines arc::.--.--cycle; draw arc::.; % Spezielle Punkte filldrawcolorgreen!!black fillgreen!!black fX circle . nodebelow f; % Gegenstands-Pfeil drawthick colorred - gX--gXGX; scope tikzpicture center
Solution:
center tikzpicture % g scope node at . g; node at enquoteRückspiegel; % Definitions defSpAngl defSpRadi NewQtyr- SolQtyfrX/ NewQtyg NewQtyG SolQtyb/fX-/gX^- SolQtyB-GX/gX*bX coordinate G at gX; coordinate F at fX; % optische Achse drawdashed colorgreen!!black ---; % Konkavspiegel drawultra thick black!!white -. arc:SpAngl:SpRadi; drawultra thick black!!white -. arc:-SpAngl:SpRadi; drawultra thick blue!!white arc:SpAngl:SpRadi; drawultra thick blue!!white arc:-SpAngl:SpRadi; % Spezielle Punkte drawcolorgreen!!black rX circle .; filldrawcolorgreen!!black fillgreen!!black fX circle .; drawcolorgreen!!black gX.--gX-.; drawcolorgreen!!black bX.--bX-.; % Gegenstands-Pfeil drawthick colorred - gX--gXGX; % Bild-Pfeil drawthick colorblue - bX--bXBX; % Alle vier speziellen Strahlen % parallel zur optischen Achse pgfmathsetmacrodx-fX pgfmathsetmacrodyGX pgfmathsetmacromdy/dx pgfmathsetmacroangatanm drawdash patternon pt off pt red gX----+ang:-; % durch den Brennpunkt pgfmathsetmacrodxgX-fX pgfmathsetmacrodyGX pgfmathsetmacromdy/dx pgfmathsetmacroyinGX-m*gX pgfmathsetmacroycyin drawdash patternon pt off pt red gX--yc --+-; % zentraler Strahl drawdotted black!!white gXGX----gX-; % radialer Strahl pgfmathsetmacrodxgX-rX pgfmathsetmacrodyGX pgfmathsetmacromdy/dx pgfmathsetmacroangatanm+ drawdotted black!!white gXGX--rX; scope tikzpicture center
Konstruiere für die Gegenstände in den folgen Skizzen so genau wie möglich das Bild welches am jeweils abgebildeten sphärischen Spiegel entsteht indem du alle wesentlichen/speziellen Strahlen die von den Spitzen der Gegenstandpfeile ausgehen einzeichnest. center tikzpicturestealth scope % Grid drawhelp lines step. -- grid ; % Definitions defSpAngl defSpRadi NewQtyr- SolQtyfrX/ NewQtyg NewQtyG SolQtyb/fX-/gX^- SolQtyB-GX/gX*bX coordinate G at gX; coordinate F at fX; % optische Achse drawdashed colorgreen!!black ---; % Konkavspiegel draw ---; filldrawpatternhorizontal lines - arc:-:.---.---cycle; draw - arc:-:.; filldrawpatternhorizontal lines arc::.---.--cycle; draw arc::.; % Spezielle Punkte filldrawcolorgreen!!black fillgreen!!black fX circle . nodebelow f; % Gegenstands-Pfeil drawthick colorred - gX--gXGX; scope scopexshiftcm % Grid drawhelp lines step. -- grid ; % Definitions defSpAngl defSpRadi NewQtyr SolQtyfrX/ NewQtyg NewQtyG SolQtyb/fX-/gX^- SolQtyB-GX/gX*bX coordinate G at gX; coordinate F at fX; % optische Achse drawdashed colorgreen!!black ---; % Konkavspiegel draw ---; filldrawpatternhorizontal lines - arc::.--.---cycle; draw - arc::.; filldrawpatternhorizontal lines arc::.--.--cycle; draw arc::.; % Spezielle Punkte filldrawcolorgreen!!black fillgreen!!black fX circle . nodebelow f; % Gegenstands-Pfeil drawthick colorred - gX--gXGX; scope tikzpicture center
Solution:
center tikzpicture % g scope node at . g; node at enquoteRückspiegel; % Definitions defSpAngl defSpRadi NewQtyr- SolQtyfrX/ NewQtyg NewQtyG SolQtyb/fX-/gX^- SolQtyB-GX/gX*bX coordinate G at gX; coordinate F at fX; % optische Achse drawdashed colorgreen!!black ---; % Konkavspiegel drawultra thick black!!white -. arc:SpAngl:SpRadi; drawultra thick black!!white -. arc:-SpAngl:SpRadi; drawultra thick blue!!white arc:SpAngl:SpRadi; drawultra thick blue!!white arc:-SpAngl:SpRadi; % Spezielle Punkte drawcolorgreen!!black rX circle .; filldrawcolorgreen!!black fillgreen!!black fX circle .; drawcolorgreen!!black gX.--gX-.; drawcolorgreen!!black bX.--bX-.; % Gegenstands-Pfeil drawthick colorred - gX--gXGX; % Bild-Pfeil drawthick colorblue - bX--bXBX; % Alle vier speziellen Strahlen % parallel zur optischen Achse pgfmathsetmacrodx-fX pgfmathsetmacrodyGX pgfmathsetmacromdy/dx pgfmathsetmacroangatanm drawdash patternon pt off pt red gX----+ang:-; % durch den Brennpunkt pgfmathsetmacrodxgX-fX pgfmathsetmacrodyGX pgfmathsetmacromdy/dx pgfmathsetmacroyinGX-m*gX pgfmathsetmacroycyin drawdash patternon pt off pt red gX--yc --+-; % zentraler Strahl drawdotted black!!white gXGX----gX-; % radialer Strahl pgfmathsetmacrodxgX-rX pgfmathsetmacrodyGX pgfmathsetmacromdy/dx pgfmathsetmacroangatanm+ drawdotted black!!white gXGX--rX; scope tikzpicture center
Meta Information
Exercise:
Konstruiere für die Gegenstände in den folgen Skizzen so genau wie möglich das Bild welches am jeweils abgebildeten sphärischen Spiegel entsteht indem du alle wesentlichen/speziellen Strahlen die von den Spitzen der Gegenstandpfeile ausgehen einzeichnest. center tikzpicturestealth scope % Grid drawhelp lines step. -- grid ; % Definitions defSpAngl defSpRadi NewQtyr- SolQtyfrX/ NewQtyg NewQtyG SolQtyb/fX-/gX^- SolQtyB-GX/gX*bX coordinate G at gX; coordinate F at fX; % optische Achse drawdashed colorgreen!!black ---; % Konkavspiegel draw ---; filldrawpatternhorizontal lines - arc:-:.---.---cycle; draw - arc:-:.; filldrawpatternhorizontal lines arc::.---.--cycle; draw arc::.; % Spezielle Punkte filldrawcolorgreen!!black fillgreen!!black fX circle . nodebelow f; % Gegenstands-Pfeil drawthick colorred - gX--gXGX; scope scopexshiftcm % Grid drawhelp lines step. -- grid ; % Definitions defSpAngl defSpRadi NewQtyr SolQtyfrX/ NewQtyg NewQtyG SolQtyb/fX-/gX^- SolQtyB-GX/gX*bX coordinate G at gX; coordinate F at fX; % optische Achse drawdashed colorgreen!!black ---; % Konkavspiegel draw ---; filldrawpatternhorizontal lines - arc::.--.---cycle; draw - arc::.; filldrawpatternhorizontal lines arc::.--.--cycle; draw arc::.; % Spezielle Punkte filldrawcolorgreen!!black fillgreen!!black fX circle . nodebelow f; % Gegenstands-Pfeil drawthick colorred - gX--gXGX; scope tikzpicture center
Solution:
center tikzpicture % g scope node at . g; node at enquoteRückspiegel; % Definitions defSpAngl defSpRadi NewQtyr- SolQtyfrX/ NewQtyg NewQtyG SolQtyb/fX-/gX^- SolQtyB-GX/gX*bX coordinate G at gX; coordinate F at fX; % optische Achse drawdashed colorgreen!!black ---; % Konkavspiegel drawultra thick black!!white -. arc:SpAngl:SpRadi; drawultra thick black!!white -. arc:-SpAngl:SpRadi; drawultra thick blue!!white arc:SpAngl:SpRadi; drawultra thick blue!!white arc:-SpAngl:SpRadi; % Spezielle Punkte drawcolorgreen!!black rX circle .; filldrawcolorgreen!!black fillgreen!!black fX circle .; drawcolorgreen!!black gX.--gX-.; drawcolorgreen!!black bX.--bX-.; % Gegenstands-Pfeil drawthick colorred - gX--gXGX; % Bild-Pfeil drawthick colorblue - bX--bXBX; % Alle vier speziellen Strahlen % parallel zur optischen Achse pgfmathsetmacrodx-fX pgfmathsetmacrodyGX pgfmathsetmacromdy/dx pgfmathsetmacroangatanm drawdash patternon pt off pt red gX----+ang:-; % durch den Brennpunkt pgfmathsetmacrodxgX-fX pgfmathsetmacrodyGX pgfmathsetmacromdy/dx pgfmathsetmacroyinGX-m*gX pgfmathsetmacroycyin drawdash patternon pt off pt red gX--yc --+-; % zentraler Strahl drawdotted black!!white gXGX----gX-; % radialer Strahl pgfmathsetmacrodxgX-rX pgfmathsetmacrodyGX pgfmathsetmacromdy/dx pgfmathsetmacroangatanm+ drawdotted black!!white gXGX--rX; scope tikzpicture center
Konstruiere für die Gegenstände in den folgen Skizzen so genau wie möglich das Bild welches am jeweils abgebildeten sphärischen Spiegel entsteht indem du alle wesentlichen/speziellen Strahlen die von den Spitzen der Gegenstandpfeile ausgehen einzeichnest. center tikzpicturestealth scope % Grid drawhelp lines step. -- grid ; % Definitions defSpAngl defSpRadi NewQtyr- SolQtyfrX/ NewQtyg NewQtyG SolQtyb/fX-/gX^- SolQtyB-GX/gX*bX coordinate G at gX; coordinate F at fX; % optische Achse drawdashed colorgreen!!black ---; % Konkavspiegel draw ---; filldrawpatternhorizontal lines - arc:-:.---.---cycle; draw - arc:-:.; filldrawpatternhorizontal lines arc::.---.--cycle; draw arc::.; % Spezielle Punkte filldrawcolorgreen!!black fillgreen!!black fX circle . nodebelow f; % Gegenstands-Pfeil drawthick colorred - gX--gXGX; scope scopexshiftcm % Grid drawhelp lines step. -- grid ; % Definitions defSpAngl defSpRadi NewQtyr SolQtyfrX/ NewQtyg NewQtyG SolQtyb/fX-/gX^- SolQtyB-GX/gX*bX coordinate G at gX; coordinate F at fX; % optische Achse drawdashed colorgreen!!black ---; % Konkavspiegel draw ---; filldrawpatternhorizontal lines - arc::.--.---cycle; draw - arc::.; filldrawpatternhorizontal lines arc::.--.--cycle; draw arc::.; % Spezielle Punkte filldrawcolorgreen!!black fillgreen!!black fX circle . nodebelow f; % Gegenstands-Pfeil drawthick colorred - gX--gXGX; scope tikzpicture center
Solution:
center tikzpicture % g scope node at . g; node at enquoteRückspiegel; % Definitions defSpAngl defSpRadi NewQtyr- SolQtyfrX/ NewQtyg NewQtyG SolQtyb/fX-/gX^- SolQtyB-GX/gX*bX coordinate G at gX; coordinate F at fX; % optische Achse drawdashed colorgreen!!black ---; % Konkavspiegel drawultra thick black!!white -. arc:SpAngl:SpRadi; drawultra thick black!!white -. arc:-SpAngl:SpRadi; drawultra thick blue!!white arc:SpAngl:SpRadi; drawultra thick blue!!white arc:-SpAngl:SpRadi; % Spezielle Punkte drawcolorgreen!!black rX circle .; filldrawcolorgreen!!black fillgreen!!black fX circle .; drawcolorgreen!!black gX.--gX-.; drawcolorgreen!!black bX.--bX-.; % Gegenstands-Pfeil drawthick colorred - gX--gXGX; % Bild-Pfeil drawthick colorblue - bX--bXBX; % Alle vier speziellen Strahlen % parallel zur optischen Achse pgfmathsetmacrodx-fX pgfmathsetmacrodyGX pgfmathsetmacromdy/dx pgfmathsetmacroangatanm drawdash patternon pt off pt red gX----+ang:-; % durch den Brennpunkt pgfmathsetmacrodxgX-fX pgfmathsetmacrodyGX pgfmathsetmacromdy/dx pgfmathsetmacroyinGX-m*gX pgfmathsetmacroycyin drawdash patternon pt off pt red gX--yc --+-; % zentraler Strahl drawdotted black!!white gXGX----gX-; % radialer Strahl pgfmathsetmacrodxgX-rX pgfmathsetmacrodyGX pgfmathsetmacromdy/dx pgfmathsetmacroangatanm+ drawdotted black!!white gXGX--rX; scope tikzpicture center
Contained in these collections: