Page 152 - PRAKTIS BELAJAR FISIKA SMA KELAS XII
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2=2> B2?8<2:2? 2BEC C62B29 72C@B D682?82? 52? 2BEC C6=2=E C672C6
36B2B29 C2>2 >2<2 4@C C69:?882 52H2?H2 >6>6?E9: A6BC2>22?
4@C
-682?82? 52? 2BEC A252 B6C:CD@B C672C6 >2<2 52H2 B2D2 B2D2 H2?8 5:C6B2A
B6C:CD@B >6>6?E9:
2D2E 2 N
ef
: =2:? A:92< D682?82? 52? 2BEC A252 :?5E<D@B 2D2EAE? <2A2C:D@B 36B3652
72C6 >2<2 52H2 A252 :?5E<D@B 2D2E <2A2C:D@B 252=29
4@ C N
,636?2B?H2 :?5E<D@B 52? <2A2C:D@B >6?H:>A2? 52H2 A252 C6D:2A C6D6?829
C:<=EC A6BD2>2 D2A: >6B6<2 >6=6A2C<2? <6>32=: 52H2 D6BC63ED A252 C6D6?829
C:<=EC 36B:<ED?H2 ,642B2 <6C6=EBE92? D:52< 252 52H2 H2?8 5:C6B2A @=69
:?5E<D@B >2EAE? <2A2C:D@B C6A6BD: 5:A6B=:92D<2? A252 &23".""/ 9
)252 B2?8<2:2? C6B: D682?82? 52? 2BEC C642B2 E>E> >6>:=:<:
3652 72C6 =:92D <6>32=: ".#"2 2D2E ".#"2 6?82? 56>:<:2?
52H2 B2D2 B2D2 H2?8 5:C6B2A A252 B2?8<2:2? D6BC63ED >6>6?E9: A6BC2>22?
P VI VI cos N
6C2B2? 4@C 5:C63ED "+&) 0 2B: ".#"2 2D2E ".#"2
D6B=:92D 329G2 72<D@B 52H2 >6>6?E9: A6BC2>22?
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-682?82? H2?8 D6BE<EB A252 B6C:CD@B :?5E<D@B 52? <2A2C:D@B A252 B2?8<2:2?
C6B: 36BDEBED DEBED 252=29 252=29 / / 52? / BEC =:CDB:< H2?8 >6?82=:B
A252 B2?8<2:2? D6BC63ED 252=29 -6?DE<2?
2 72<D@B 52H2 52?
3 52H2 H2?8 5:C6B2A B2?8<2:2?
"6"#
:<6D29E: / / / 52?
-682?82? D@D2= B2?8<2:2? 252=29
/ / / /
2 2<D@B 52H2 252=29
/
' 4@C
/
3 2H2 H2?8 5:C6B2A B2?8<2:2? 252=29
4@C / 0
7-=4;2 5.4<:86*07.<24 -*7 :=; 2;<:24 85*4 *524