Gelombang Cahaya
41
3. Daya Urai Optik
14118;5=1=D1B52D185B1DCD;=5=9B18;1 21G17141A94D1C9C9;G17C5A9B18B1CDB1=119141:1A1;=99=D=
5=1=D15A25B1A111C11C?C9;=9B1G1D=9;A?B;?41 C5A??74921C1B9?5841G1DA195B141:D714921C1B9?58?1496A1;B9
G17C5A25CD;14121G17125419CD 3 =5=5A981C;1218F121G171G17C5A:149=5
AD1;1?1496A1;B9G1749B5212;1?58 D1BB9BC5=5B1 ?5811C11C?C9;C5AB52DC
?1496A1;B9G174925CD;?58B52D1835182D1CC5A49A91C1B25CD; C5A17 DB1C G17 49;59979 3939 C5A17 41 751 +118 B5?A17
9=DF113 8.+=5G9=D;1218F14D12D18C9C9;BD=25A G17C5A17G1B1=11;1C5A981CC5A9B18:9;1=1;B9=D=B5CA11C1D
DB1CDB1C 41A9 ?1 496A1;B9 G17 B1CD 25AC51C1 5C1;G1 4571 =99=D=5AC1=141A9?1496A1;B9C9C9;G1719 ?1C5AB52DC411C
49:51B;14571=577D1;13 1A9:1A997;1A1C5A17G17C5A25CD;411C491AC9;141G1
9B18?1496A1;B9G17C5A21C1B 9;13181G1=51D9AD1781=11C1D D41A141G1DA1941A9351897;1A1411C49C5CD;145715AB1=11
K 5DADC 8.+4104;A9C5A91:1A1;1C1A1;54D1=1;B9=D=
C5AB52DC197;539B1=14571:1A9:1A997;1A1C5A17 1;B9=D= G17;54D1:1CD8141=99=D=G175AC1=11C1D:1A1;BD4DC1C1A1
;54D1DB1C21G171G19CD
B9
K -CD;BD4DCG17;539
K 5C5A171
41G1DA19= :1A1;254141A95B1=
1:1775?=2173181G1= 491=5C5A2D;115B1=
BD4DC45E91B9
Gambar 2.14
Bayangan dari optik fisis dua benda yang berdekatan karena a beririsan
dan b terpisah dengan baik.
Gambar 2.15
Lukisan sinar dari sumber cahaya dari sebuah celah bulat.
D celah bulat
pola difraksi r
cahaya sumber datang 2
s
1
s
2
L D
Contoh
2.8
5C9;1491=5C5A=1C1495A25B1AB1=19==25A11:1A1;=99=D=1C1A14D1 BD=25AC9C9;G17=1B98411C492541;1?58=1C1141:1A1;3=41A9=1C1
1:1775?=2173181G149D41A1=41945;B291B=1C1 5A81C9;171=21A25A9;DC
Merak jantan dengan bulu-bulu ekornya yang berwarna-warni dan
berukuran lebar menyebabkan lebih kelihatan menarik dibanding
merak betina. Keindahan bulu merak tersebut merupakan contoh
efek difraksi gelombang cahaya oleh bulu merak.
Male with the largest or most colorful adornments are often the most
attractive to females. The extraordinary feathers of a peacock’s tail are an
example of diffraction effect of peacock’s tail light wakes.
Sumber: Biology Concepts Connections,
2006
Informasi
untuk Anda
Information for You
DIUNDUH DARI: WWW.BUKUPAKET.COM Sumber buku bse.kemdikbud.go.id
Mudah dan Aktif Belajar Fisika untuk Kelas XII
42
518CD771B5521A
==49B91A93181G1G17 1:1775?=217G1 I ?1496A1;B949C17;1
1411G1AG17:1A1;G13=41A93518 ,5CD;1 :1A1;1C1A171A9B751;5C9714171A9BC5A17DB1C
DCD;BD4DC G17;539
B9 C1
5A11521A3518CD771G17495AD;1BD1G1 411CC5A:1499C5A65A5B9=1;B9=D=?A45;5C9714571
BD4DC496A1;B9J41A9B525A;1BB91A=??;A?=1C9BG17 =5=99;91:1775?=217 I
,5CD;11841G1DA19B52D1835184571491=5C5A ==41:1A1;3518;51G1A=5C5A45711:17
75?=2173181G1G1= 1A1;4D11=D=?2914118=5C5A41491=5C5A
D9=1C1B5?A1711;
== 9;11:1775?=217 3181G1G1749131A;1;54D11=DC5AB52DCA1C1
A1C1 I25A11;18:1A1;=?29=1;B9=D=BD1G1 G111=D9CD=1B98411C499B18;1?58=1C1
+5?A1711;=5=2D;1=1C1521A521AB589771 491=5C5A9A9BG13= 9;1497D1;1B91A;D97
45711:1775?=217 I25A11;1841G1 9B18=1C111;C5AB52DC411=A14914145A1:1C
Tes Kompetensi Subbab
B
3,-0..6-6.5+0
C. Polarisasi Cahaya
Kategori