118
Mudah dan Aktif Belajar Fisika untuk Kelas X
1. Indeks Bias
45;B291B411C491417B521719BD1CD;5=1=D1=549D==5= 291B;1=5=25?;;11A18A1=21C3181H1 9;13181H125A75A1;41A9
E1;D=1C1DD41A1;5=549D=19945;B291BH149B52DC+ 10=549D=C5AB52DC 1415;B5A9=5,59DB919945;B291BH17
49411C+=5AD1;1919945;B291B=DC1;;131;1A513181H1 25A75A1;41A9E1;D=1C1DD41A1;5;131 ,531A1=1C5=1C9B411C49CD9B
B52171925A9;DC L
+ 2
2. Hukum Pembiasan
5=291B13181H1C941;B5=21A17C5C19=579;DC98D;D=8D;D=5= 291B1 D;D=5=291B15AC1=1;1949H1C1;1?58,4241,75
1899B9;125A;5217B115141 1,75=51;D;15;B5A9=54571 =55F1C;1B525A;1BB91A14121?;;131 5A41B1A;181B95;B5A9=5
H17491;D;1H11,75;5=D491=5H1C1;1D;D=5=291B1 H1H19CD-.++++11100+++1110.101 4
4+0+.10111+.1-+101,+0+04+ .+4++-.++++110.10
+
9
B9+
A
B9. B9
B9
.
+ .
+
45;B91BDC1;525A11549D= ,70
1;D= .41A1
9A
J C91;?8?
131 D1AB1
5A?1 9C1
1315G9 C1
B9 B9
.
+ .
L 5C5A171
BD4DC41C17 .BD4DC291BA51C96
+945;B291B 45;B291BA51C96BD1CD=549D=141185A214971919945;B
291B=DC1;41A94D1=549D=H1725A2541 9B1H1B525A;1B3181H1 25A75A1;41A9=549D=19A+
.
;5=549D=;131+ ,531A1=1C5=1C9B945;B291B19AA51C96C5A8141=549D=;131411C49CD9B
. .
+ +
+
Sumber
: Fundamentals of Physics, 2001
Gambar 6.19
Deskripsi hukum pembiasan r
i B
5C5A171 +945;B291B=DC1;
;5351C13181H149E1;D=
D41A1 2;5351C13181H149BD1CD=549D=
919945;B291B=DC1;2525A11=549D=49CD:D;;1141
Di unduh dari : Bukupaket.com
119
Cahaya dan Optika
medium air medium–1
medium kaca medium–2
Gambar 6.20
Sinar yang melalui dua medium berbeda, yaitu air dan kaca.
,531A1D=D=:9;13181H125A75A1;41A9=549D=;5=549D= 945;B291B=549D=
A51C96C5A8141=549D= ,531A1=1C5=1C9B411C
49CD9B;1B52171925A9;DC +
+ +
B9 B9
+ +
+ .
5AB1=11C5AB52DC411C:D7149CD9BB52171925A9;DC
L
9;5C18D92 45716A5;D5B941 1:1775?=217
57145=9;91919945;B291B411C495A?58:D7141A91:17 75?=217
2 12
1
n L
B9 B9
+ +
+ .
L
4501
;4134501
; =5=99;9=1;169B9BH19CD ;5351C13181H1411=BD1CD=549D=25A21497C5A219;4571919
945;B291BH1 1;BD4H1:9;1945;B291BB5=1;925B1A;5351C1 3181H1B5=1;9;539 ,5217193?C?8;5351C13181H1411==549D=
;1315298;5394921497;14571;5351C13181H1;5C9;1=5A1=21C 411=19A 1B1H1945;B291B=DC1;;131529825B1A41A9141945;B
=DC1; 19A ,519 9CD 41 :D71 411C =5H9=D;1 218F1 ;5C9;1 75?=217=5A1=21C41A9BD1CD=549D=;5=549D=19H17945;B
291BH125A25411:1775?=217 4125B1A;5351C1275?=217 C5AB52DC25AD2181=D6A5;D5B975?=217C5AB52DCC941;25AD218
5C5A171 +
945;B291B=DC1;=549D= +
945;B291B=DC1;=549D= +
945;B291B=549D=
A51C96C5A8141=549D= BD4DC41C1749=549D=
. BD4DC291B49=549D=
3. Hubungan Cepat Rambat Cahaya dan Indeks Bias Medium