< PreviousRadiasi Benda Hitam191I2?85:8E?2<2?@=69A2B229=:3:@=@8:E?DE<>6?6=:D:;2C25>:<B@C<@A:C>6BEA2<2?4@?D@9A6>2?722D2?C:72D86=@>32?8A2BD:<6= ':<B@C<@A6=6<DB@?52A2D>6?892C:=<2?A6B36C2B2?I2?8C2?82DD:?88: c.Prinsip Ketidakpastian HeisenbergA2<29?52A6B?29>6>32I2?8<2?3282:>2?242B2I2?85:8E?2<2?A2B27:C:<2G2?E?DE<>6?82>2D:6=6<DB@??52D6=2936=2;2BD6?D2?8676<7@D@=:CDB:<52?676< @>AD@?A252>2D6B:C636=E>?I2 *252A6>3292C2?D6BC63EDD6B;25:DE>3E<2?2?D2B27@D@?52?6=6<DB@? *6B:CD:G2:?:=29I2?85:8E?2<2?@=69A2B27:C:<2G2?E?DE<>6?82>2D:6=6<DB@? @D@?5:D6>32<<2?<62B296=6<DB@?C69:?882D6B;25:DE>3E<2?2?D2B2<65E2?I2<6>E5:2?7@D@?I2?8D6BA2?DE=<2?@=696=6<DB@?:?:5:2>2D:@=69A6?82>2D @D@?:?:>6>32G2:?7@B>2C:D6?D2?8<636B2522?6=6<DB@? <2?D6D2A:<636B2522?6=6<DB@?I2?85::?7@B>2C:<2?@=697@D@?D6BC63ED3E<2?<636B2522?7@D@?I2?8C636?2B?I2>6=2:?<2?<636B2522?6=6<DB@?C6D6=29DE>3E<2?56?82?7@D@? 6?82?<2D2=2:?252<6D:52<A2CD:2?A@C:C:6=6<DB@?2<:32DDE>3E<2?56?82?7@D@? *B:?C:A:?:A6BD2>2<2=:5:<6>E<2<2?@=69*.7*3'*6,52?AB:?C:A:?:5:<6?2=56?82??2>2AB:?C:A<6D:52<A2CD:2?"6:C6?36B8 .?DE<=63:9;6=2C?I2A6B92D:<2?82>32B36B:<ED *252A6B:CD:G2D6BC63ED7@D@?>6>:=:<:>@>6?DE>C636C2B!52?;:<27@D@?36BDE>3E<2?56?82?6=6<DB@?>@>6?DE>2G2=6=6<DB@?2<2?36BE329 *6BE3292?I2?8D6A2DD:52<3:C25:B2>2=<2?D6D2A:A6BE3292?:?:C632?5:?856?82?A6BE3292?>@>6?DE>7@D@?! $25:A6?8E<EB2?D6BC63EDD6=29>6?I6323<2?<6D:52<A2CD:2?C636C2B!) )=69<2B6?2<6D:52<A2CD:2?A6?8E<EB2?A@C:C:6=6<DB@?C6<EB2?8<EB2?8?I2C2>256?82?A2?;2?886=@>32?8I2?85:8E?2<2?I2:DE0 %6D:52<A2CD:2?>@>6?DE>52?A@C:C:?I2252=29)0!M $25:5:52=2>D6@B:+6=2D:F:CD:<A@C:C:52?>@>6?DE>CE2DEA2BD:<6=D:52<52A2D5:D6?DE<2?D6A2DC642B236BC2>22? ,6>2<:?36C2B<6D6A2D2?A@C:C:A2BD:<6=C6>2<:?36C2B<6D:52<A2CD:2?>@>6?DE>?I2 ,632=:<?I2C6>2<:?36C2B<6D6A2D2?92B82>@>6?DE>?I2C6>2<:?<64:=<6D6A2D2?A@C:C:?I2 6B365256?82?D6@B:<=2C:<A@C:C:52?>@>6?DE>CE2DEA2BD:<6=52A2D5:D6?DE<2?C642B2D6A2D52?36BC2>22? Gambar 7.15Tumbukan foton dan elektronketika mengamati elektron.Kata Kunci•gelombang partikel•efek fotolistrik•foton•fungsi kerja•efek Compton•panjang gelombang de Broglie•jarak antara bidang•prinsip ketidakpastianHeisenbergpengamatmomentumelektron semulafoton datangmomentumelektron akhirpengamatpengamat234elektronbertumbukanSumber: Konsep Fisika Modern, 1983Mudah dan Aktif Belajar Fisika untuk Kelas XII192 &@82>46C:E>>6>:=:<:7E?8C:<6B;2 6/ 2 6B2A2A2?;2?84292I286=@>32?8D6BA2?;2?8I2?852A2D5:;2DE9<2?A252A6B>E<22?=@82>46C:E>D2?A2>6?86=E2B<2?6=6<DB@?52B:A6B>E<22?=@82>3 $:<2A6B>E<22?=@82>5:C:?2B:@=694292I2>@?@<B@>2D:<56?82?A2?;2?886=@>32?8 ?>9:DE?8=296?6B8:<:?6D:<>2<C:>E>6=6<DB@?7@D@I2?8<6=E2B52B:A6B>E<22?=@82> 4 6B2A2<29A@D6?C:2=96?D:I2?8>6?292?<6=E2B?I22BEC6=6<DB@? 292I256?82?A2?;2?886=@>32?8 ?>>6B25:2C:A6B>E<22?=@82>I2?8>6>:=:<:7E?8C:<6B;2 P M ;@E=6 $:<2 P > C52?!P M$CD6?DE<2?2 6?6B8:<:?6D:<>2<C:>E>6=6<DB@?7@D@?I23 A@D6?C:2=96?D: ,E2DE36B<2CC:?2B156?82?6?6B8: <6/>6?82=2>:92>3EB2? @>AD@?56?82?CE5ED L -6?DE<2?6?6B8:7@D@?C:?2B1C6CE52992>3EB2? *6?E?DE?6?6B8:7@D@?5:BE>EC<2?@=69 ! ,63E297@D@?>6>:=:<:A2?;2?886=@>32?8 ?>>6?82=2>:92>3EB2? @>AD@?56?82?CE5ED L -6?DE<2?=292 A2?;2?886=@>32?83 6?6B8:7@D@?I2?85:92>3EB<2?4 6?6B8:I2?85:36B:<2?<6A2526=6<DB@?I2?8>6=@>A2D ,63E29A2BD:<6=36B86B2<56?82?<646A2D2? P > C 6B2A2<29A2?;2?886=@>32?8A2BD:<6=;:<2A2BD:<6=D6BC63ED2 6=6<DB@?3 AB@D@?4 3@=236B>2CC2 <8 6B2A2<29A2?;2?886=@>32?87@D@?282B>@>6?DE>?I2C2>256?82?>@>6?DE>6=6<DB@?I2?836B86B2<56?82?<646A2D2? P > C ,63ED<2?=298282C2?I2?85:<6>E<2<2?@=6956 B@8=:6 ":DE?8=29A2?;2?886=@>32?856 B@8=:6I2?85:>:=:<:@=696=6<DB@?I2?836B86B2<56?82?=2;EP > C ,63E29A2BD:<6=36B>2CC2 M<8>6>:=:<:A2?;2?886=@>32?856 B@8=:6C636C2B ?> -6?DE<2?=29<646A2D2?86B2<A2BD:<6=D6BC63ED ,63E29A2BD:<6=36B86B2<56?82?=2;E P > C ":DE?8=29>2CC2A2BD:<6=D6BC63ED;:<2A2?;2?886=@>32?856 B@8=:6I2?85:>:=:<:A2BD:<6=:DE ?> Tes Kompetensi Subbab B*6/&0&31&-5&)&'9091&8.-&3Rangkuman +25:2C:6=6<DB@>28?6D:<I2?85:A2?42B<2?@=6936?525:C63EDB25:2C:D6B>2= 6?529:D2>252=29CE2DEC:CD6>I2?852A2D>6?I6B2AC6>E2B25:2C:<2=@BI2?8>6?86?2:36?522D2EC:CD6>D6BC63ED '6?EBED,D672? @=DJ>2??:?D6?C:D2CB25:2C:D6B>2=CE2DE36?525:?I2D2<2?56?82? "E<E>*6B86C6B2?0:6?>6?I2D2<2?329G2A2?;2?886=@>32?8I2?8CE9E?I2D:?88:=63:9A6?56<52B:A252A2?;2?886=@>32?8:?D6?C:D2C36?52I2?8CE9E?I2B6?529 ,642B2>2D6>2D:C"E<E>*6B86C6B2?0:6?5:?I2D2<2?C63282:36B:<ED >2<C<@?CD2?-6@B:0:6?:?:52A2D>6?6B2?8<2?CA6<DBE>A252A2?;2?886=@>32?8I2?8A6?56<D6D2A:>6?I:>A2?8<6D:<2>6?6B2?8<2?A2?;2?886=@>32?8I2?8A2?;2?8 +2I=6:89$62?C>6>A6B@=69A6BE>EC2?329G2:?D6?C:D2CB25:2C:36B32?5:?8D6B32=:<56?82?A2?8<2D6>A2DA2?;2?886=@>32?8 -6@B:+2I=6:89$62?C:?:52A2D>6?6B2?8<2?CA6<DBE>A252A2?;2?886=@>32?8I2?8A2?;2?8D6D2A:>6?I:>A2?8<6D:<2>6?6B2?8<2?A2?;2?886=@>32?8I2?8A6?56< '6?EBED-6@B:*=2?4<6?6B8:B25:2C:I2?85:A2?42B<2?@=6986D2B2?>@=6<E=36?52>6BEA2<2?A2<6D<E2?D26?6B8:I2?836C2B?I2?'! ?6B8:E?DE<C2DE7@D@?252=29C636C2B ! 76<7@D@=:CDB:<252=2986;2=2D6B=6A2C?I26=6<DB@?6=6<DB@?52B:A6B>E<22?A=2D=@82><6D:<25:C:?2B:56?82?7B6<E6?C:D6BD6?DE *6BC2>22?I2?836B=2<EA25286;2=2:?:252=29! $56?82? ! 252=297E?8C:<6B;26=6<DB@?A252=@82> E?8C:<6B;2252=296?6B8:>:?:>E>I2?85:3EDE9<2?6=6<DB@?282BD6B=6A2C52B::<2D2?:?D:2D@>A252=@82> 76< @>AD@?>6?;6=2C<2?329G2<6D:<27@D@?>6?E>3E<6=6<DB@?7@D@?>6>36B:<2?6?6B8:A2526=6<DB@? %69:=2?82?6?6B8:A2527@D@?5:D2?52:56?82?>6?864:=?I27B6<E6?C:7@D@?2D2E36BD2>329A2?;2?8?I2A2?;2?886=@>32?87@D@? '@>6?DE>I2?85:>:=:<:7@D@?252=29! )& 2D2E!)Radiasi Benda Hitam193 6?82?>6?88E?2<2?"E<E>%6<6<2=2? ?6B8:52?"E<E>%6<6<2=2?'@>6?DE>52=2>5:?2>:<2B6=2D:F:CD:<5:52A2D<2?A6BC2>22?92>3EB2? @>AD@?C63282:36B:<ED !!)&/ ,:72D86=@>32?8A252A2BD:<6=A6BD2>2<2=:5:<6?2=<2?@=69&@E:C56 B@8=:6 '6?EBED5:2A2?;2?886=@>32?8A2BD:<6=A2?;2?886=@>32?856 B@8=:6252=29C:? *B:?C:A<6D:52<A2CD:2?6=6<DB@?>6?882>32B<2?329G2:?7@B>2C:D6?D2?86=6<DB@?<636B2522??I2D:52<A2CD: 6C2B?I2<6D:52<A2CD:2?C636C2B!))=69<2B6?2<6D:52<A2CD:2?A6?8E<EB2?6=6<DB@?C6<EB2?8<EB2?8?I2C2>256?82?A2?;2?886=@>32?8I2?85:8E?2<2?I2:DE0! %6D:52<A2CD:2?>@>6?DE>52?A@C:C:?I2252=292D2E!0)0!Peta Konsep &).&7.*3)&.8&2D6B;25:A6?I:>A2?82?E?DE<A6?6B2A2??I2>E?4E=4@?D@9A6?6B2A2?I2>6>3292C*6BE>EC2?+2I=6:89$62?CD6B;25:A6?I:>A2?82?E?DE<2D2E 2D2E ":A@D6C:C*=2?4<'6?8E<EB,E9E'2D292B:2D2E :?D2?8>6>3292C>6>3292C>6>3292C*2?;2?8!6=@>32?856 B@8=:6 76< @D@=:CDB:< 76< @>AD@?*B:?C:A%6D:52<A2CD:2?"6:C6?36B8 E2=:C>6!6=@>32?8*2BD:<6=#?D6?C:D2C+25:2C:"E<E>*6B86C6B2?0:6?,:72D!6=@>32?8A252*2BD:<6=,:72D*2BD:<6=A252!6=@>32?8Setelah mempelajari materi pada bab ini, Anda tentudapat memahami mengenai benda hitam. Anda jugapaham bahwa cahaya juga dapat bersifat seperti partikeldan partikel bisa bersifat seperti gelombang. Darikeseluruhan materi yang ada pada bab ini, bagianRefleksimanakah yang Anda anggap sulit untuk dipahami? CobaAnda diskusikan dengan teman atau guru Fisika Anda.Coba Anda tuliskan juga manfaat mempelajari bab ini.Diskusikan konsep yang ada di dalamnya bersama temanAnda.Mudah dan Aktif Belajar Fisika untuk Kelas XII194 *252A6B:CD:G2676<7@D@=:CDB:<C6>2<:?36C2B:?D6?C:D2C4292I2A6?I:?2B2??I2>2<2 2 C6>2<:?36C2B6?6B8:<:?6D:<6=6<DB@?I2?8D6B=6A2C3 C6>2<:?36C2B<646A2D2?6=6<DB@?I2?8D6B=6A2C4 C6>2<:?32?I2<6=6<DB@?I2?8D6B=6A2C5 <646A2D2?52?;E>=296=6<DB@?I2?8D6B=6A2CC2>236C2B6 6?6B8:I2?8D6BC6B2A@=693292?C6>2<:?36C2B ?6B8:7@D@?CE2DE86=@>32?86=6<DB@>28?6D:<36B82?DE?8A252 2 <646A2D2??I25 A2?;2?886=@>32?8?I23 :?D6?C:D2C?I26 CE9E?I24 2>A=:DE5@?I2 6B:<ED:?:I2?87@D@??I2>6>:=:<:6?6B8:D6B36C2B252=29 2 C:?2B>6B295 C:?2B13 C:?2BE?8E6 86=@>32?8B25:@4 C:?2B82>>2 6C2B?I2A2?;2?886=@>32?856 B@8=:652B:C63E296=6<DB@?I2?836B86B2<56?82?<6=2;E2? 56?82? P > C52?>2CC26=6<DB@? P M <8252=29 2 K5 K3 K6 K4 K 292I2E=DB2F:@=6DI2?85:A6B8E?2<2?E?DE<>6?I:?2B:A6B>E<22?=@82>>6>:=:<:A2?;2?886=@>32?8 K =6<DB@?I2?8D6B=6A2C52B:A6B>E<22?=@82>>6>:=:<:6?6B8:<:?6D:<C636C2B6/ E?8C:<6B;252B:=@82>D6BC63ED252=29 2 6/5 6/3 6/6 6/4 6/ E2<6A:?8=@82>5:36B:<2?3652A@D6?C:2= =6<DB@?>6?E>3E<2?@5256?82?<6=2;E2?/ $:<2>2CC26=6<DB@?&>E2D2??I2 <6=2;E2?6=6<DB@?52A2D5:DE=:C<2?>6?;25: 2 &5 &3 &6 &4 & $:<2C63E29A6>2?42BB25:@36B52I2 G2DD>6>2?42B<2?7@D@?D:2AC6<@??I2C632?I2<P 3E296?6B8:C2DE7@D@??I2252=29 2 P M $5 P M $3 P M $6 P M $4 P M $# " *6B>E<22?=@82>D6BD6?DE>6>:=:<:7E?8C:<6B;2;@E=6 $:<2<@?CD2?D2*=2?4<!;@E=6C6<@?6?6B8:>2<C:>E>7@D@6=6<DB@?I2?85:92C:=<2?@=694292I236B7B6<E6?C:/"J252=29 ;@E=6 2 !/5 !/3 !/6 !/24 2!/ *6B>E<22?CE2DE=@82>>6>:=:<:7E?8C:<6B;2 P M $5:C:?2B:4292I2I2?8A2?;2?886=@>32?8?I2 ?6B8:<:?6D:<7@D@6=6<DB@?>2<C:>E>I2?85:92C:=<2?252=29 2 P M $3 P M $4 P M $5 P M $6 P M $'8&3&7 *2?;2?886=@>32?8CE2DE7@D@?P K>6?86?2:CE2DEA6B>E<22?=@82>I2?86?6B8:2>32?8?I2 6/ $:<2 P > C52?!P M;@E=6C6<@?36C2B6?6B8:<:?6D:<7@D@6=6<DB@?252=29 2 P M ;@E=63 P M ;@E=64 P M ;@E=65 P M ;@E=66 P M ;@E=6'8&3&7 $:<2C:?2BE?8E>6>:=:<:7B6<E6?C: "J5:;2DE9<2?A252A6B>E<22?=@82>I2?8>6>:=:<:6?6B8:2>32?8 <2=:<E2?DE>6?6B8:C:?2BE?8E52?D6D2A2?*=2?4<P M;@E=6C6<@?6?6B8:<:?6D:<6=6<DB@?I2?85:=6A2C252=29 2 P M ;@E=63 P M ;@E=64 P M ;@E=65 P M ;@E=66 P M ;@E=6 B6<E6?C:2>32?8?2DB:E>P "J 6C2B?I2A@D6?C:2=A6?896?D:52=2>F@=D328:?2DB:E>C22D5:C:?2B:56?82?4292I2I2?87B6<E6?C:?I2 P "J252=29 2 /5 /3 /6 /4 /# " ,636B<2CC:?2B56?82? "J;2DE9A252=@82> E?8C:<6B;2=@82> P M $>2<2A@D6?C:2=96?D:,-())"' )(- '-"%52B:6=6<DB@?!P M$C&6 P M <8*6 P M 252=29 2 /5 /3 /6 /4 /Tes Kompetensi Bab 7 .1.-1&-7&1&-7&89/&;&'&3=&3,5&1.3,'*3&6Radiasi Benda Hitam195 *25286;2=27@D@=:CDB:<5:A6B@=698B27:<9E3E?82?<E2D2BECI2?8D:>3E=D6B9252AD682?82?=:CDB:<C6A6BD:A25282>32B .A2I2I2?85:=2<E<2?282B8B27:<>6?;25:8B27:<252=29 2 >6?8EB2?8::?D6?C:D2CC:?2B?I23 >6?2>329:?D6?C:D2CC:?2B?I24 >6?2:<<2?7B6<E6?C:C:?2B5 >6?EBE?<2?7B6<E6?C:C:?2B6 >6?882?D:=@82>I2?85:C:?2B:# " !B27:<I2?8>6?E?;E<<2?9E3E?82?2?D2B26?6B8:<:?6D:<6=6<DB@?7@D@<52?:?D6?C:D2C7@D@?A252AB@C6C7@D@=:CDB:<252=29 2 5 3 6 4 # " $:<2D6D2A2?*=2?4< P M$CA2?;2?886=@>32?856 B@8=:6CE2DE6=6<DB@?I2?836B86B2<56?82?<6=2;E2? P > C252=29 2 P MK3 P M K4 P M K5 K6 K'8&3&7 292I2<E?:?8>6>:=:<:A2?;2?886=@>32?8 K $:<2D6D2A2?*=2?4< P M$C52?<6=2;E2?4292I252=2>BE2?892>A2252=29P > C>@>6?DE>7@D@?4292I2<E?:?8252=29 2 M<8> C3 M <8> C4 M<8> C5 <8> C6 <8> C'8&3&7 ,63E296=6<DB@?5:A6B46A2D@=69CE2DE3652A@D6?C:2= $:<2 >E2D2?6=6<DB@?&>2CC26=6<DB@?52?!<@?CD2?D2*=2?4<>2<2A2?;2?886=@>32?856 B@8=:66=6<DB@?:?:52A2D5:?I2D2<2?56?82?BE>EC 2 !& 5 !& 3 !& 6 !& 4 !& # " !B27:<36B:<ED>6?E?;E<<2?9E3E?82?6?6B8:<:?6D:<>2<C:>E>6=6<DB@?<D6B9252A7B6<E6?C:7@D@? A252676<7@D@=:CDB:< $:<2<@?CD2?D2*=2?4<P M$C52? 6/ P M ;@E=636C2B 252=29 2 P "J5 P "J3 P "J6 P "J4 P "J# " !2>32B36B:<ED252=298B27:<9E3E?82?<6?6B8:<:?6D:<>2<C:>E>7@D@6=6<DB@?D6B9252A 7B6<E6?C:C:?2BI2?85:8E?2<2?A252676<7@D@=:CDB:< (:=2:A2528B27:<D6BC63ED252=29 2 P M$5 P M $3 P M$6 P M $4 P M $# " "E3E?82?6?6B8:<:?6D:<6=6<DB@?52?7B6<E6?C:A6?I:?2B2?A25286;2=27@D@=:CDB:<D6B=:92DA2528B27:<C6A6BD:82>32B EkIEkIEkIEkIEkIEk (eV)0, 23,7f0ff (Hz)54f (×1014Hz)Ek (J)pDCfAf BEk (J)f (Hz)IVab0Mudah dan Aktif Belajar Fisika untuk Kelas XII196 ?6B8:<:?6D:<6=6<DB@?I2?8D6B=6A2C52B:A6B>E<22?=@82>C636C2B 6/ A23:=24292I2A6?I:?2B2?52B:=E2BI2?85:A6B8E?2<2?>6>:=:<:7B6<E6?C: "J36B2A2<297B6<E6?C:A6?I:?2B2?I2?85:A6B=E<2?CEA2I26?6B8:<:?6D:<6=6<DB@?>6?;25: 6/ @D@?52B:86=@>32?86=6<DB@>28?6D:<56?82?A2?;2?886=@>32?8 K>6?E>3E<C63E296=6<DB@?52=2>BE2?892>A2 ,6D6=29DE>3E<2?7@D@?D6BA2?DE=56?82?2B29 LD6B9252A2B29C6>E=2D6?DE<2?=292 A2?;2?886=@>32?87@D@?C6D6=2936BDE>3E<2?3 6?6B8:7@D@?C6D6=2936BDE>3E<2? *252C63E29>:<B@C<@A6=6<DB@?6=6<DB@?5:=6G2D<2?A252>652?=:CDB:<56?82?3652A@D6?C:2= 6/ $:<25:<6D29E:>2CC26=6<DB@? P M <852?>E2D2?6=6<DB@? P M 4@E=@>3D6?DE<2?=292 <646A2D2?6=6<DB@?C22D>6?E>3E<2?@523 A2?;2?886=@>32?86=6<DB@? *252C22D7@D@?>6?E>3E<C63E296=6<DB@?7@D@?D6BC63ED36B32=:<2B2952B:2B29?I2C6>E=2 A23:=2A2?;2?886=@>32?87@D@?>E=2>E=2 KD6?DE<2?=292 A2?;2?886=@>32?8?I2C6D6=2936BDE>3E<2?3 6?6B8:7@D@?I2?89:=2?8A252C22D36BDE>3E<2? -6?DE<2?=2936C2B?I26?6B8:A6B56D:<I2?85:A2?42B<2?@=69C63E293@=22A:36BA:;2B56?82?5:2>6D6B 4>52?CE9EA6B>E<22?3@=22A:D6BC63ED % :<6D29E:<@67:C:6?6>:C:F:D2C?I2 E?8C:<6B;2C63E29=@82>?2DB:E>252=29 6/ -6?DE<2?A2?;2?886=@>32?8>2<C:>E>4292I2I2?852A2D>6?I6323<2?D6B;25:?I2676<7@D@6=6<DB@? *252CE2DEA6B:CD:G27@D@=:CDB:<6=6<DB@?D6B=6A2C52B:A6B>E<22?=@82>56?82?<6=2;E2?/A252C22D7B6<E6?C:C:?2BI2?85:A2<2:>6?I:?2B:=@82>D6BC63ED -6?DE<2?=29<6=2;E2?6=6<DB@?I2?8<6=E2B52B:A6B>E<22?=@82>;:<27B6<E6?C:C:?2B=E2B5:;25:<2? ,63E297@D@?56?82?A2?;2?886=@>32?8 (>>6?2>3296=6<DB@?5:2> @D@?5:92>3EB<2?56?82?CE5EDC:>A2?82? 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TATBITFisika Atom197197membuat ulasan tentang perkembangan teori atomSetelah mempelajari bab ini, Anda harus mampu:menganalisis berbagai besaran fisis pada gejala kuantum dan batas-batasberlakunya relativitas Einstein dalam paradigma Fisika Modern.Hasil yang harus Anda capai:Fisika AtomA.Evolusi ModelAtomB.Atom BerelektronBanyak>41@1CD9@5B>18=5>45>71BD5>D1>71D?=D?==5BE@1;1>2181>41C1B@5>IECE>C5=E1J1DI1>7141491<1=9>9D5D1@91D?=2E;1>@1BD9;5<D5B;539<;1B5>1=1C98141@1BD9;5<@1BD9;5<CE21D?=9;*18E;18>41DE:E1>@1B19<=EG1>=5=@5<1:1B91D?=+>DE;=5>:1G12@5BD1>I11>D5BC52ED>4181BEC=5>:1G12D5B<5298418E<E@5BD1>I11>@5BD1>I11>25B9;ED@1;18>41D18ED5>D1>7C5B1D?@D9;I1>721>I1;497E>1;1>41<1=4E>91D5<5;?=E>9;1C9C5;1B1>79>9@1;18>41D18E2181>1@1I1>7497E>1;1>C521719B1>7;1@5C1G1DE<1>71<9;5>71>=5=@5<1:1B9C5<E;25<E;1D?=@1B19<=EG1>41@1D=5=?4969;1C9E>CEBE>CEBC589>771=5=9<9;9C961DI1>74981B1@;1>'1412129>9>411;1>=5=@5<1:1B95F?<EC9=?45<1D?=41>1D?=25B5<5;DB?>21>I1;$1D5B99>9=5BE@1;1>41C1B@5>75D18E1>E>DE;25<1:1B41>=5>71@<9;1C9;1>D5;>?<?79D5>D1>769C9;1=1D5B91<Bab8Sumber: Chemistry: Matter and Its Changes, 2003Atom terdiri atas proton dan neutron yang terletak pada intiserta elektron yang mengorbit pada kulit.Mudah dan Aktif Belajar Fisika untuk Kelas XII198A.Evolusi Model Atom)5:1;J1=1>4E<E=1>EC91CE418D5BD1B9;E>DE;=5>75D18E92181>41C1B@5>IECE>C5<EBE8=1D5B91<41>J1DI1>7141491<1=9>9#1>41C1>25B@9;9B>I1C1>71DC545B81>1=5B5;1=5>71=29<1>1<?79C52E18BE=18I1>7492E1D41B921DE41>;1IE;5=E491>21DED5BC52ED49CECE>?<58@1BD9;5<@1BD9;5<21DEI1>7<5298;539<41>C5D5BEC>I1;89B>I1=5B5;1C1=@19@141;5C9=@E<1>218G12181>C5=E1=1D5B91<41>J1DI1>7141491<1=9DE49CECE>?<58CE1DE2181>41C1B1.Model Atom Demokritus 45D5>D1>7;525B1411>2181>41C1B9>9;1<9@5BD1=149;5=E;1;1>?<58 ,;*077;9<189BD18E> )$"5=E491>,46280:;9 M )$=5>75=21>7;1>@5>41@1D ,;*077;945>71>=5=25B9>1=1,'%'+E>DE;2181>41C1B9>9%1=19>9491=29<41B92181C1/E>1>9I1>725B1BD9D941;41@1D492179<179!149,46280:;9=5>I1D1;1>218G1C5=E1=1D5B91<41>J1DI1>7141491<1=9>949CECE>?<5821791>D5B;539<I1>7D941;41@1D492179<179I19DE1D?='141=1C1D5BC52ED21>I1;@1B169<CE6I1>7=5>75=E;1;1>@5>41@1D>I1=5>75>191D?=B7E=5>D1C9I1>7=5B5;17E>1;1>2E;1>4941C1B;1>@14181<@5B3?211>=5<19>;1>25B41C1B;1><?79;1-1<1E@E>@5>5=E1>=5B5;19>9C521D1CD5?B9D5D1@981<9>9D5<18=5>:149D?>771;@5>D9>7E>DE;@5;5=21>71>D5?B969C9;11D?=41>69C9;19>D9)59B9>745>71>@5B;5=21>71>J1=1>21>I1;69C9;1G1>41>;9=91G1>I1>7D5BD1B9;E>DE;=5=@5<1:1B9D5?B91D?=9>9D5BEC=5=2E1D5F?<EC9=?45<1D?=C589>7714941@1D;1>=?45<1D?=C5@5BD9C5;1B1>79>92.Model Atom Dalton6/5(3:65 M 141<18C5?B1>79<=EG1> >77B9CI1>7;1<9@5BD1=1=5>I1D1;1>D5?B9D5>D1>71D?=25B41C1B;1>81C9<5;C@5B9=5>I1>749<1;E;1>69,7/!86;9:C5?B1>7;9=91G1>41B9'B1>39CI1>7=5>I1D1;1>218G1C5>I1G149CECE>?<58E>CEBE>CEB45>71>@5B21>49>71>D5D1@ 1C9<5;C@5B9=5>!86;9:9>949C52ED E;E='5B21>49>71>*5D1@'141 !86;9:=5<1;E;1>5;C@5B9=5>45>71>=5B51;C9;1>E>CEB894B?75>41>E>CEB?;C975> 1=5>5=E;1>C5>I1G119B45>71>@5B21>49>71>D5D1@I19DE 71B>41<5298:5<1C@5B81D9;1>D125<25B9;ED#,),3;44,47,3(1(802659,70902(:642,81(2(53(/96(396(3),802;:+(3(4);2;3(:0/(5Tes Kompetensi Awal )52ED;1>;?=@?>5>@5>IECE>C52E181D?=41>:5<1C;1>;54E4E;1>D91@;?=@?>5>D5BC52ED41<1=1D?= )52ED;1>41>:5<1C;1>=?45<=?45<1D?=I1>7@5B>18141=E<1941B91G1<C1=@19=?45<I1>7D5B21BE )52ED;1>>1=1>1=1;E<9DD5=@1D5<5;DB?>=5>7?B29D41<1=1D?=41>25B1@1:E=<18=1;C9=E=5<5;DB?>I1>741@1D25B141@141D91@;E<9DD5BC52ED?21>41@5B81D9;1>D125<@5B9?49;E>CEBE>CEB$5>EBED>4121719=1>1;18E;EB1>:1B9:1B91D?=41<1=1C1DE@5B9?4541>2C1DE7?<?>71>TokohJohn Dalton(1766–1844)John Dalton adalah seorangilmuwan Inggris. Dia orang pertamayang mengemukakan tentang teoriatom berdasarkan hasil eksperimenyang dilakukan Joseph Proust. Daltonmenyatakan bahwa atom adalahbagian terkecil dari benda yang tidakdapat dibagi-bagi lagi.Sumber: www.allbiographies.comFisika Atom199)5<19>81C9<5;C@5B9=5>'B?ECD5;C@5B9=5><19>I1>749:149;1>13E1>?<581<D?>41<1==5=2E1DD5?B91D?=>I1141<185;C@5B9=5>I1>749<1;E;1>?<585:605, (<6090,841>!8,09:3,?'141 4E1?B1>7;9=91G1>9DE=5<1;E;1>5;C@5B9=5>45>71>=5=1>1C;1>=5B;EB9?;C941I1>7498E2E>7;1>45>71>E41B149G1418D5BDEDE@ 1C9<5;C@5B9=5>=5>E:E;;1>=1CC1C525<E=B51;C941>C5CE418B51;C9141<18C1=1'5B>I1D11>9>949;5>1<C521719 E;E=#1F?9C95BE181C9<5;C@5B9=5>9>9=5=2E1D(3:65=5=@5B31I19D5>D1>7;525B1411>1D?=!9;1CE1DEE>CEBD5B49B941B92181>41C1BI1>7D941;;?>D9>ED941;=E>7;9>141@5B21>49>71>D5D1@E>CEBE>CEB@5=25>DE;C5>I1G141>;5;5;1<1>=1CC1&<58;1B5>19DE@141 1<D?>=5>7ECE<;1>D5?B91D?=C52171925B9;ED1D?==5BE@1;1>21791>D5B;539<CE1DEJ1DI1>7D941;41@1D4921792179<1792)5D91@E>CEB=5=9<9;9C961DE>9;I1>7C5CE1945>71>C961D1D?=@5>IECE>>I13E11D?=1D1E<5298I1>725B1C1<41B9E>CEBE>CEB25B<19>1>41@1D25B712E>7=5=25>DE;=?<5;E<4'141CE1DE@5BC5>I1G11>E>DE;=5=25>DE;=?<5;E<:E=<18=1CC1C525<E=41>C5CE418@5BC5>I1G11>141<18C1=15'141CE1DE@5BC5>I1G11>E>CEBE>CEB@5=25>DE;>I1C5<1<E25B14141<1=@5B21>49>71>D5D1@41>C545B81>13.Model Atom Thomson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okohSir J.J. Thomson(1856–1940)Thomson adalah seorang ahli Fisikayang lahir di Checham Hill, GreaterManchester, Inggris. Dia belajar diCambridge dan meraih gelarprofesor pada 1884. Dia meraihhadiah Nobel Fisika tahun 1906.Eksperimennya yang terkenaltentang tabung sinar katode. Darieksperimennya, dia menemukannilai nisbah e/m.Sumber: www.allbiographies.com (99(0+86.,5?(5.08,(2902(5.8(4 (99( 290.,5?(5.08,(2902(5.8(4 (99(08.8(4 #09((903",(290.8(4 7B1=?;C975> 7B1=894B?75> $(),3 ;C@5B9=5>'5B21>49>71>*5D1@'B?ECDMudah dan Aktif Belajar Fisika untuk Kelas XII200Gambar 8.1Percobaan Thomson(4)(8 =5>E>:E;;1>@14121791>D5>718D12E>7C9>1B;1D?454925B9=541><9CDB9;41>=541>=17>5DI1>71B18>I1C1<9>7D571;<EBEC*'++ ! $ I19DE=541><9CDB9;25B1B18;521G18@14171=21B41>=541>=17>5D25B1B18;541<1=;5BD1C@14171=21B*181@1>D181@1>5;C@5B9=5>I1>749<1;E;1>?<58$/64965141<18C52171925B9;ED "5D9;1 41> @1BD9;5<C9>1B;1D?4525B75B1;<EBEC "5D9;1=541><9CDB9;491;D96;1>C9>1B;1D?4525B75B1;;51D1C 1<9>949C5212;1>71I15<5;DB?CD1D9C1>D1B1@1BD9;5<25B=E1D1>>571D9641>@5<1D;EDE2@?C9D96 5>71>D5D1@=5>:17125C1B =541>=17>5D491;D96;1>)5CE1945>71>;19418D1>71>;1>1>1B1871I1#?B5>DJ141<18;521G185>71>=5>71DEB25C1B>I1 C9>1B;1D?45D5BC52ED1;1>25B75B1;<EBEC;5=21<91B95;C@5B9=5>D5BC52ED$/64965=5>41@1D;1>@5B89DE>71>=1D5=1D9CC52171925B9;ED "5<1:E1>@1BD9;5<41<1=D12E>7C9>1B;1D?454941@1D;1>41B9@5BE2181>5>5B79@?D5>C91<<9CDB9;=5>:1495>5B79;9>5D9;@1BD9;5<D5BC52ED (<9CDB9; #@1BD9;5< %. % .M "5D5B1>71> =E1D1>@1BD9;5<C9>1B;1D?45%=1CC1@1BD9;5<C9>1B;1D?45.;535@1D1>@1BD9;5<C9>1B;1D?452541@?D5>C91<I1>74925B9;1> "5D9;1@1BD9;5<C9>1B;1D?45D5D1@25B75B1;<EBECG1<1E@E>4925B9=541><9CDB9; 41>=5>41>=17>5D 25B1BD9 < 3 . . M 5>71>=5>CE2CD9DEC9;1>!,89(4((5@ ;5!,89(4((5@ 1;1>4941@1D;1> % M katodeanodelayar fluoresensi+–USABCBFvJika ada elektron yang bergerakdengan kecepatan v dalam suatumedan magnet B, arah gayaLorentznya mengikuti kaidah tangankanan.IngatlahNext >