Page 27 - PRAKTIS BELAJAR FISIKA SMA KELAS XII
P. 27

!%2+/81%2



                 $+.,"!-& :2>A=.8.; =2>.:/.@.; ?A.@A 42@.>.;       12;4.; /69.;4.; 429<:/.;4
                E.;4 @61.8 16?2>@.6 12;4.; =2>=6;1.5.; :216A:
                =2>.;@.>.;E.  @2@.=6 5.;E. :2:6;1.58.; 2;2>46
                 !-)!-& &$+.,"!-& .1.9.5 =.;7.;4 ?.@A =A;0.8 1.;   3>28A2;?6 ?A1A@
                ?.@A 92:/.5  .@.A ?.@A >.=.@.; 1.; ?.@A >2;44.;4.;
                 $0(.#$ &$+.,"!-& .1.9.5 C.8@A E.;4 16=2>9A8.;

                A;@A8 :2;2:=A5 ?.@A =.;7.;4 429<:/.;4   0$*3$-1(   1.; ?A1A@ 3.?2 429<:/.;4 1.9.: >.16.;
                &$+.,"!-&  .1.9.5  /.;E.8;E.  429<:/.;4  @6.=
                ?28<;                                                                      (      $
                                                                    $+.,"!-&  12!1(.-$0  .1.9.5  429<:/.;4  E.;4

                                     .@.A                          .:=96@A1<;E. /2>A/.5 @2>5.1.= =<?6?6   29<:/.;4
                                                                   ?@.?6<;2> @2>/2;@A8 1.>6 ?A=2>=<?6?6 1A. 429<:/.;4
                 $/!2  0!,"!2  &$+.,"!-&  .1.9.5  7.>.8  E.;4      /2>.:=96@A1< 1.; /2>=.;7.;4 ?.:.
                16@2:=A5 429<:/.;4 1.9.: ?.@A ?28<;
                                                                                  # )  )      )
                                    s                                                 (                    ?6;
                                   v          f                              # )             ?6; (     $       $
                                    t  T                                         ?6;    (          $


                 2=.@ >.:/.@ 429<:/.;4 =.1. @.96 /2>4.;@A;4 =.1.             # )               0<?
                4.E. @24.;4.; @.96 1.; :.??. =2> ?.@A.; =.;7.;4              #       # )  0<?         $
                @.96                                                ;2>46 E.;4 16=6;1.58.; 429<:/.;4 /2>A=. 2;2>46
                                                                   42@.>.;  1.>6  ?.@A  =.>@6829  82  =.>@6829  9.6;  1.9.:
                                  F     F L
                              v     T     T                        :216A: E.;4 169.9A6;E.
                                        m

                 (,/!-&!- &$+.,"!-& .1.9.5 7.>.8 =.>@6829 E.;4
                169.9A6  429<:/.;4  82  @6@68  ?2@6:/.;4   ?21.;48.;
                .:=96@A1<  .1.9.5  ?6:=.;4.;  :.8?6:A:;E.           ;2>46 E.;4 16=6;1.58.; 429<:/.;4 @6.= ?.@A.;
                 $+.,"!-& 20!-14$01!+ .1.9.5 429<:/.;4 E.;4 .>.5   9A.?  @6.= ?.@A.; C.8@A 16?2/A@ (-2$-1(2!1 &$+.,"!-&
                42@.>;E. @24.8 9A>A? 12;4.; .>.5 >.:/.@;E.  ?21.;4
                8.; &$+.,"!-& +.-&(23#(-!+ .1.9.5 429<:/.;4 E.;4

                .>.5 42@.>;E. ?27.7.> 12;4.; .>.5 >.:/.@;E.        &.1. =2>6?@6C. =2:.;@A9.; 429<:/.;4 /2>9.8A  3*3,
                &2>?.:..; 02=.@ >.:/.@ 429<:/.;4 9<;46@A16;.9       $,!-23+!-  $+.,"!-&  E.6@A ?A1A@ =.;@A9 ?.:.
                =.1. F.@ =.1.@ .1.9.5                              12;4.; ?A1A@ 1.@.;4

                                      E                             $,"(!1!-  &$+.,"!-&  .1.9.5  =2:/29<8.;  .>.5
                                  v                                :A8. 429<:/.;4 82@68. :.?A8 1.>6 ?.@A :216A:

                                                                   82 :216A: 9.6;
                &2>?.:..; 02=.@ >.:/.@ 429<:/.;4 9<;46@A16;.9
                =.1. F.@ 0.6> .@.A 4.? .1.9.5                                       sini     v 2
                                                                                    sinr  v
                                      B                                                   1
                                  v                                 -2$0%$0$-1(  &$+.,"!-&  .1.9.5  =2>=.1A.;  .@.A

                                                                   ?A=2>=<?6?6 429<:/.;4 82@68. 1A. 429<:/.;4 .@.A
                 $+.,"!-& "$0)!+!- .1.9.5 429<:/.;4 E.;4 /2>       92/65 @6/. 16 @2:=.@ E.;4 ?.:. =.1. ?..@ E.;4 ?.:.
                42>.8 12;4.; .:=96@A1< @2@.=  &2>?.:..; A:A:        (%0!*1( &$+.,"!-& .1.9.5 =2>6?@6C. =2:/29<8.;
                429<:/.;4 /2>7.9.; .1.9.5                          0.5.E.  82@68.  :292C.@6  029.5  ?2:=6@  .@.A  =2;4

                                  ?6;        )     (            $  5.9.;4




















                  #:*4<2;  .5*3*:  2;24* =7<=4  .5*; (
   22   23   24   25   26   27   28   29   30   31   32