From b96e77a19186fba34f22be17c35ae1d9bcab7c28 Mon Sep 17 00:00:00 2001 From: Claude Meny Date: Wed, 3 Feb 2021 12:01:39 +0100 Subject: [PATCH] Update annex.fr.md --- .../03.lens/03.lens-beyond/annex.fr.md | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/05.paraxial-optics/02.paraxial-optics-simple-elements/03.lens/03.lens-beyond/annex.fr.md b/01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/05.paraxial-optics/02.paraxial-optics-simple-elements/03.lens/03.lens-beyond/annex.fr.md index 8e2c5acf1..0e1a19838 100644 --- a/01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/05.paraxial-optics/02.paraxial-optics-simple-elements/03.lens/03.lens-beyond/annex.fr.md +++ b/01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/05.paraxial-optics/02.paraxial-optics-simple-elements/03.lens/03.lens-beyond/annex.fr.md @@ -138,11 +138,10 @@ media_order: 'lentille-boule-orleans-1bis.jpg,lensball-brut-820-760.jpg,Einstein ! Taking into account that the image is reversed, the algebraic value of the apparent magnification is $`\overline{M_A}=-0.44`$. ! ! * You could obtained directly this algebraic value of $`M_A`$ by considering algebraic lengthes and angles values in the calculations :

$`\overline{M_A}=\dfrac{\overline{\alpha'}}{\overline{\alpha}}`$ $`=\dfrac {arctan\left(\frac{-0.017}{-0.175}\right)} {arctan\left(\frac{90}{-400}\right)}`$ $`=\dfrac{0.097}{-0.221}=-0.44`$ -! ! ! ![](lentille-boule-orleans-1bis.jpg)
! _Cathedral of Orleans (France)_ -! +! ! ! !