ا ا ن ا ا رة ر 1ل ا ت ا" ! ا ود .ا ا..../20 ....................$ % (1ا)ت ( (' !' ,- ./.................ا+و ط ' . ...............ن 0ا)ت آ1ة آ %آ ن ا...............3آ" .- (2ا 8ل ا! .ره ! =6! >(................... 56/ 5 ................. 56إ; أ8ى. C / 1 / (3ا 'ن 0ا ا ./ة Bل 51أآ 1آ %آ ! Aآ. ................ @% λ د( v = λ ..υ ج( H (4د ا) > >( FGا Eت ا :أ( v = λ .Tب( v = υ .T υ ( ( 1E! (5ا B ./ل %0 . v = 20m / s 0 ( 51أن دد ا . υ = 100 Hz M1/ =v . F= ;%0 ,=6! M1/(PQ(6ا ء دد SHG( υ = 200 Hzت دا. Rا! Tا 6Sا : λ = ................... (1-6أوB Hل ا ا ./ة F= ;%0ا ء . v = ................................. (2-6ا 0 Vا! .ر ا . d = ............ ........ ( (3-6ا -ا >( E= QE=6 ,ا F= ;%0 0X( >%ا ء 8ل ! SواHة؟ T = ................. ( (4-6اHور ا Y$Q /(Pا .؟ %0 (7أن 0ا! .ر ا ا) ,-اQاء . v = 340m / s : هHG 5ث [ هة اGد %ا) ,- d = 10cm QX0 G- 10ا > Gا > : ................................................................... ^ ( (1-7ذات دد . υ1 = 4.10 3 Hz ..................................................................... ^ ( (2- 7ذات دد υ 2 = 100 Hz a Pa/! (8د Xء أ دي ا%ن Bل (@ > X >( 5)G/- a = 57,1µ .m @X0 bc 10 ، λا ( E6 ;%0 HQ.آP >( D = 1,60m - ( ;%0 H c c ;%0 L = 3,2cm QX0ا.b. '> θا ق اPاوي أي اPاو ا .! ,ه e)! Q8 >( Hا E61ا آ Pا!= (> ا.b. θ = .................................. H (1-8د . θ λ = ......................... (2-8ا 1E( λ Vا Q/0ب. nm : nair=1 5 آ > ه ه%0 8 أCو ً ـ0 H ا ءC%- %E FG) " أآ........ ا د...... B ........ =ا ا دة i^أ . v = λ..υ (ج 1 T = = 0,01s ⇐ υ = 100 Hz υ (1 (2 (3 (4 (5 . اE6( ;61 ا ا اM%=( : ا6S اT!ا. R ت داSHG( υ = 200 Hz ا ء ددF= ;%0 ,=6! M1/( PQ (6 3,6cm × 10 = 4cm (1-6 9 v = λ .υ = 4.10 −2 m.200 Hz = 8m / s . ر ا.! ا0 (2-6 . ا دة56/ ن ا+ d = 0 . ةH ! واS ل8 ا ءF= ;%0 0X( >% (> اE= QE=6 , ا- ( ا3-6 1 1 T= = = 5.10 −3 s : اY$Q /(Pور اH( ا4-6 υ 200 . v = 340m / s : اءQ ا,- ) ر ا ا.! ا0 (7 d ≤ λ د إذا آ نG; ا%0 5)G! d = 10cm G ض ا0 v 340m / s ;%0 5)G! . ⇐ λ1 = = = 0,085m = 8,5cm p d ، υ1 = 4.10 3 Hz ا) ذات دد% 1 / (1-7 3 υ1 4.10 Hz .دGا v 340m / s .دG; ا%0 5)G! ⇐ فλ 2 = = ≈ 3,4m = 340cm f d ، υ 2 = 100 Hz ( ا ا) ذات دد2- 7 υ2 100 Hz . D = 1,60m b.ا- c . ا- اL = 3,2cm P ا آE61ض ا0 وa = 57,1µ .m b.ض ا0 (8 .b. ا!= (> اP ا آE61 اe)! Q8 >( H ه.! ,او اPاوي أي اP ا ق اθ L 3,2m .θ = = = 10 −2 rad (1-8 −2 2 D 3,2.10 m λ= λ = a.θ = 57,1µm.10 −2 = 0,571µm = 571.10 −9 m = 571nm ⇐ θ= λ a : أن%E! (2-8 (9 ************************************************************************************************* @ لB 5Qaع ُ( اa ـ0 %Eق ذل ا$ >(و ,E- .ا Sbiro Abdelkrim Lycée Agricole Oulad-Taima région D'Agadir Royaume du Maroc [email protected] .b- و! ل ا ' اG )' ا0 ! د/