From c35d3f09e76c214ded143280dda21e5a102da41e Mon Sep 17 00:00:00 2001 From: Claude Meny Date: Tue, 24 Mar 2020 16:53:36 +0100 Subject: [PATCH] Update textbook.fr.md --- .../interference-diffraction-main/textbook.fr.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/interferences-diffraction/interference-diffraction-main/textbook.fr.md b/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/interferences-diffraction/interference-diffraction-main/textbook.fr.md index 9d2ad5be2..5e25257b7 100644 --- a/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/interferences-diffraction/interference-diffraction-main/textbook.fr.md +++ b/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/interferences-diffraction/interference-diffraction-main/textbook.fr.md @@ -188,7 +188,7 @@ $`\underline{A_{tot}}=A\cdot \dfrac{e^{i\,N\,\phi}-1}{e^{i\,\phi}-1}=\dfrac{(1-c L'**intensité résultante** est alors -$`I_{tot}=\underline{A_{tot}}\,\underline{A^*_{tot}}=|\underline{A_{tot}}^2|=A_{tot}^2=A^2\cdot\dfrac{(1-cos^2\,N\phi)+sin^2\,N\phi}{(1-cos^2\,\phi)+sin^2\,\phi}`$ +$`I_{tot}=\underline{A_{tot}}\,\underline{A^*_{tot}}=|\underline{A_{tot}}^2|=A_{tot}^2=A^2\cdot\dfrac{(1-cos\,N\phi)^2+sin^2\,N\phi}{(1-cos\,\phi)^2+sin^2\,\phi}`$ $`\quad=A^2\cdot\dfrac{1-2\cos\,N\phi+cos^2\,N\phi+sin^2\,N\phi}{1-2\cos\,\phi+cos^2\,\phi+sin^2\,\phi}= A^2\cdot\dfrac{2-2\cos\,N\phi}{2-2\cos\,\phi}`$