Sudut Kritis dan Pemantulan Sempurna

123 Cahaya dan Optika 1 cos d r L 5A41B1A;1 495A?58 3?B . 5A41B1A;14501 ;414501 ;495A?58 3?B B9 . 6 . B58977125B1A5A75B5A1B91A B9 L 3?B . . L 5C5A171 BD4DC41C17 C521;13111A15 . BD4DC291B 025B1A5A75B5A1B91A ,525A;1BB91A1B5A:1CD81415A=D;11;13111A15411C=5=25CD;BD4DC 41C17B525B1AJ 9;1C521;13111A153=41BD4DC291B JC5CD;125B1A 5A75B5A1H174911=9?58B91A1B5AC5AB52DC 9 9;5C18D9 J. J3= B9 L 3?B . . B9 J L J 3?B J 149;5C9;1=55F1C9;13111A15B91A1B5A=5711=95A75B5A13=41A9 1A18B5=D1 Contoh 6.9

6. Pembiasan pada Prisma

A9B=1=5AD1;12541H17C5A2D1C41A9751BC5=2DB3181H1CA1B 1A1H17;54D1B9B9H14921C1B9294175A=D;1H17A5=25CD;BD4DC C5AC5CD B1CD B1=1 19 ,D4DC C5AB52DC 491=1;1 BD4DC 5=291B B9=2? 94175A=D;11A9B=125A6D7B9B521719294175=291B 5A81C9;1:11H1B91AH17=55F1C9B52D18A9B=114104 181H141C1741A9D41A1=5D:D294175A=D;11A9B=11;1 49291B;1=545;1C971A9B?A=1 5=D491;5C9;13181H1=59771;1 A9B=1=5D:DD41A13181H1C5AB52DC1;149291B;1=5:1D8971A9B?A=1 ,5C518=55F1C9A9B=13181H1=5711=945E91B9 5B1AH1BD4DC45E91B9 H174911=93181H114118B52171925A9;DC 5A81C9;104 5A81C9;1 . 6 41 6 . J 6 6 5A81C9;1 J . 1 J . 2 Gambar 6.27 Prisma segitiga Gambar 6.28 Jalannya sinar pada prisma N N sinar datang sinar bias 124 Mudah dan Aktif Belajar Fisika untuk Kelas X J 6 6 J J J 6 6 . 6 6 1 2 r i L ,D4DC45E91B9H1 J J J 6 6 6 6 L . . . L. 1 2 i r L 5C5A171 BD4DC5=291BA9B=1 . BD4DC291B41A9B91A=1BD; BD4DC41C17B91A=1BD; . BD4DC291B41A9B91A;5D1A BD4DC41C17B91A;5D1A BD4DC45E91B9 ,52D18A9B=1C5A2D1C41A9;131+=5=99;9BD4DC5=291BJ 9;1B525A;1B B91A1B5A:1CD8141B118B1CD5A=D;115=291BH14571BD4DC41C17J 25A11;18BD4DC45E91B9H174911=9?58B91A1B5AC5AB52DCB5C518=55F1C9A9B=1 9 9;5C18D9 J + =549D=;131 + =549D=D41A1 J ,D4DC45E91B94989CD74571=577D1;15AB1=11 1 2 i r 58;1A51 41 C51849;5C18D9919. BD4DC291B;54D15AD4931A9C5A5298 418DD 1415A=D;115=291B5AC1=125A1;D5AB1=11,59DB25A9;DC Contoh 6.10 Gambar 6.29 Penurunan rumus sudut deviasi prisma

7. Deviasi Minimum

,5C91B91AH1741C17141A9B=11;1=5711=945E91B9H17 =5781B9;1BD4DC45E91B9C5AC5CD ,118B1CDB91A41C17C5AC5CD 1BC91;1=5781B9;1919BD4DC45E91B9=99=D= 11;?49B9;8DBDB B9 B9 + . + 4571+ + D41A1 41+ ;131 B9 B9 B9 . . . 919 49C5CD;1B52171925A9;DC 2 1 1 i r r 2 60 19, 47 40,53 i 5=D491919. 49C5CD;1B52171925A9;DC B9 B9 B9 B9 J + . . . + B9 1A3B9 J . . . 149BD4DC45E91B9H174911=93181H1;5C9;1=55F1C9A9B=1;131C5AB52DCB525B1A . 6 JJLJJ P S T Q r 1 r 2 i 2 i 1 R B 125 Cahaya dan Optika 77A3?8273?2?967:3;0B9A7 2AA3?827 2AB2BA2A53?A;;235B2BA07932B 3?EB2BA23C77;77;B;30B6?7;2A271?7305703?79BA :369?3 ;9 36755 K 7:7 27;B99 93 2:; 12-. 7 36755 23C77?7;;3827 K 3?2?9 B9B;3::7B 7 7 K 12-.7212-.727B0A7AB79932:; 12-.736755273?=:36 7 7 7 7 79 9317: 7 36755 K K K K K 30B6?7;E5A3?0BA2?791E5;3;7:797B2BA3;07 I 27:3A992:;;327B;7?79303?97?2A52?77? ;3;B97 ?7;03?96B2BA23C77;77;B;?7;A3?30BA 5 793A6B7 I ;327B;7? ;327B;91 K 3A3?5 B2BA23C77;77;B; 1,2 n B2BA07?3:A74;327B;A3?62;327B; B2BA23C77?7; Contoh 6.11