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testn12abacsbiroabdelkrim

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‫ 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/ 
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