From 1eb25d5944b85d156e92da77968b4bc43795a8f0 Mon Sep 17 00:00:00 2001 From: Daniel Bulant Date: Thu, 21 Sep 2023 14:23:39 +0200 Subject: [PATCH] vault backup: 2023-09-21 14:23:39 --- .../obsidian-activity-history/data.json | 4 +- .../various-complements/histories.json | 2 +- notes/.obsidian/workspace.json | 2 +- ...z světla 2023-09-21 14.11.58.excalidraw.md | 319 +++++++++++++++++- notes/fyz/Svetlo/Odraz světla.md | 12 +- 5 files changed, 333 insertions(+), 6 deletions(-) diff --git a/notes/.obsidian/plugins/obsidian-activity-history/data.json b/notes/.obsidian/plugins/obsidian-activity-history/data.json index 741ef0d..0975389 100644 --- a/notes/.obsidian/plugins/obsidian-activity-history/data.json +++ b/notes/.obsidian/plugins/obsidian-activity-history/data.json @@ -13,7 +13,7 @@ { "path": "/", "date": "2023-09-21", - "size": 1438800 + "size": 1445794 } ], "activityHistory": [ @@ -1346,7 +1346,7 @@ }, { "date": "2023-09-21", - "value": 23570 + "value": 30564 } ] } diff --git a/notes/.obsidian/plugins/various-complements/histories.json b/notes/.obsidian/plugins/various-complements/histories.json index 3179978..693e4f5 100644 --- a/notes/.obsidian/plugins/various-complements/histories.json +++ b/notes/.obsidian/plugins/various-complements/histories.json @@ -1 +1 @@ -{"har":{"har":{"frontMatter":{"count":2,"lastUpdated":1694084811854}}},"index":{"index":{"frontMatter":{"count":1,"lastUpdated":1694084814400}}},"Kruhovy dej":{"Kruhovy dej":{"internalLink":{"count":1,"lastUpdated":1694165211841}}},"Ekvigonala":{"Ekvigonala":{"internalLink":{"count":1,"lastUpdated":1694169007024}}},"\\sphericalangle":{"\\sphericalangle":{"currentFile":{"count":1,"lastUpdated":1694680712479}}},"Logaritmus":{"Logaritmus":{"internalLink":{"count":1,"lastUpdated":1694690308884}}},"zobrazení":{"zobrazení":{"currentFile":{"count":2,"lastUpdated":1694769120832}}},"Druhý pohybový zákon":{"Druhý pohybový 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"lineHeight": 1.25 } ], "appState": { @@ -119,7 +436,7 @@ tags: [excalidraw] "currentItemStartArrowhead": null, "currentItemEndArrowhead": "arrow", "scrollX": 2193.3750000000014, - "scrollY": 2068.166666666667, + "scrollY": 2018.1666666666622, "zoom": { "value": 0.47999999999999965 }, diff --git a/notes/fyz/Svetlo/Odraz světla.md b/notes/fyz/Svetlo/Odraz světla.md index 189b432..92a011a 100644 --- a/notes/fyz/Svetlo/Odraz světla.md +++ b/notes/fyz/Svetlo/Odraz světla.md @@ -94,4 +94,14 @@ $x_2=15cm$ Určete úhel dopadu světla na rozhraní vody ($n_v = 1.33$) a skla ($n_s = 1,5$), svírá-li odražený paprsek s paprskem lomeným úhel $120\degree$. -![[Odraz světla 2023-09-21 14.11.58.excalidraw]] \ No newline at end of file +![[Odraz světla 2023-09-21 14.11.58.excalidraw]] + +$\frac{\sin\alpha}{\sin60\degree\cos\alpha-\cos60\degree\sin\alpha}=\frac{n_2}{n_1}$ +$\frac{n_1}{n_2}=\frac{\sin60\degree\cos\alpha-\cos60\degree\sin\alpha}{\sin\alpha}$ +$=\sin60\degree\frac{\cos\alpha}{\sin\alpha}-\cos60\degree$ + +$\frac{\frac{n_1}{n_2}+\cos60\degree}{\sin60\degree}=\frac{\cos\alpha}{\sin\alpha}$ + +$\frac{\sin\alpha}{\cos\alpha}=\tg\alpha=\frac{\sin60\degree}{\frac{n_1}{n_2}+\cos60\degree}=0.62$ +$\frac{\sin\alpha}{\sin(60\degree-\alpha)}=\frac{n_2}{n_1}$ +$\alpha\dot=32\degree$