FPT 2021 IPT connect | FPT 2022 Physics Fights Classement Problèmes Participants Jurés

12. Inverse coffee cup vibration problem

If you tap the top of a coffee cup with a spoon you will notice that the sound strongly depends on where you tap. Knowing the cup geometry one can predict the frequency spectrum of the emitted sound when tapping at different points. Consider now the inverse problem and find an experimental technique to reconstruct the cup geometry from the emitted sound. What is the minimal knowledge about the cup geometry needed to make the problem solvable? https://youtu.be/MfzNJE4CK_s?t=333

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ESPCI

7,20

Université Grenoble Alpes

6,13

Université Paris-Saclay

7,80

Université de Lyon - UCBL - ENS de Lyon

7,88

Université de Paris

7,20

7,30

Université de Strasbourg

8,00

7,00

École polytechnique

8,13

8,10

Moyenne

7,29

7,65