ondes lumineuses
DESCRIPTION
Ondes lumineuses1TRANSCRIPT
(1) 1 -
- 1 - 1
(1)
d 0 - 2
(2) . - 3 -
(3) .
- . - .
θ . a
. a -
λ 0 = 700 nm
- 5-3
4 -
. : (4)
n n R R
.. . -
- 5 (5)
. n V : 1,680=
. (5). β - 6
AA
αα
β
A
α
λ = 730mm .a = 0,1mm D = 2m.
1- θ -2 3-
n = 1.5A=60° .i'=90°
)1 i D
)2 )3 4( i = i’ r = r’. n
A D.
d K
2J3J KKF0,75 E
L
=1,5mD 2 1-
2- 3- . θθθθ 4- θθθθ a λλλλ. 5- θθθθ a D L λλλλ .L=1,6cm 6)5( A. i1=30° ) 3(
n=1,612 . . -6-1 6-2- . 6-3- . 6-4-
. 6-5- .
=
3
. a λ : a
0,10 0,15 0,20 0,25 a(mm)
32 21 16 13 L(mm)
)5,0.( ))1
)5,0.( ) .
)5,0.( D L θ )2
)5,0.( . a D λ . a λ 3(
)5,0.( . a L 4( )1.( 5(( :
0,10 0,15 0,20 0,25 a(mm)
32 21 16 13 L(mm)
))10(10( 1 1133 −−
)1.( ( L : m 3
)5,0( mm40 7(
: ))1 . (I
) : .
. θ )2
D
L
.........................................................................................................................................
.........................................................................................................................................
1 13 − m
mm m
. 75,1=n A=60°
( ). AB
. )1.( i’ r’ r D i A 1( :
'r AC l i )2
)5,0.( .
. °= 30i 3(
1= air n
.
. °= 56i 4(
)5,0.( 4-2( .
4-3( .
)1.( . B
) 1 : (II
r ni sinsin =
'sin'sin ir n =
'r r A +=
.........................................................................................................................................
l
.........................................................................................................................................
. °= 30i )3
.
11
n
i r ⇐ r ni sinsin = AB :
. AC ⇐
l ir Ar >°=−=−= 4,436,1660'
:
:
°=== −−
30)6,16sin.75,1(sin)''sin(sin'' 11
inr ⇐ ''sin''sin r in = BC
: D
.K J I K J I
d d d D ++=
11
n
i r ⇐ r ni sinsin = 41( :
. AC ⇐ l ir Ar <°=−=−= 7,313,2860'
.........................................................................................................................................
°=== −−
30)6,16sin.75,1(sin)''sin(sin'' 11
inr ⇐ ''sin''sin r in = BC
: D
.K J I K J I
d d d D ++=
11
n
i r ⇐ r ni sinsin = 41( :
. AC ⇐ l ir Ar <°=−=−= 7,313,2860'
.........................................................................................................................................
.........................................................................................................................................
i r ⇐ r ni
B sinsin = : AB :
. AC 0 : ⇐ °=−=−= 3,307,2960' r Ar
°=== −−
⇐ 'sin'sin. ir n B
i r ⇐ r ni
O sinsin = : AB :
. AC ⇐ °=−=−= 8,2920,3060' r Ar
°≈== −−
⇐ 'sin'sin. ir n O
= : AB :
°=−+=−+= 1,51601,5556' Aii D O
II( λ .a
1( . L D θ θ )2
3( m D =5,1 a
L .
3-1: .
. λ a
)10( 1 14 −
.nm 3-5
( mn. λ ) 2
400 800
: ).( mn
R n
. °= 60 A °= 35i 2.4( .
R D (
- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---------- ---- ---- -- ---- --- --- ---- --- --- ---- ----- -- ---- --- --- ---- --- --- ---
. k 3-5: :
)10( 2
)10( 1 14 −m a
1 2 3 4 5
:
°≈=== −−−
°=−=−= 372360' r Ar :
°≈=×=×= −−−
: °=−+=−+= 6,36606,6135' Aii D R
°≈=== −−−
°≈=×=×= −−− 9,65)91,0(sin)5,37sin5,1(sin)'sin(sin'
°=−+=−+= 9,40609,6535' Aii D V
λ :
a b
A
12
1-1 (0,25)(2) (1)
a=1,634b=5,63.10-15m21-2
R=720nmλ
1-4 α (0,50) )6 (
L(mm)23 28 35 46
.D=1,8m
1-
3-
L=2,0cm. D λ -5
. °= 30 O i R 1(
). ) cm D 50= . 1=
air n : n
)5,0.( . I 1-1(
)5,0.( i D . P
Y OY P
Y 1-3(
)( λ
)75,0.( . i )
)75,0.( . i ( Yviolet= 17,3cm :
Yrouge= 17,5cm
λ ( 2
. a
)1(
)5,0.( 2-1( )5,0.( 2-2( )1( .
a
)5,0.( .a L 2-4 (
. cma 5,5'=
:
b an += ) )1-4
.
. .................................................... ...............................................................................................................................................................................................................
51,1 3,19sin
53,1 19sin
........................................................................................................................ ...........................................................................................................................................
............................................................................................................................................................................................................................................ .....................
.............................................................................................. .....................................................................................................................................................................
. md µ 55 1 = . 1d
L C = 50 A'B' AB1 cm 4 cm). A
.( 1- f '. 2- A'B' . 3- A n = 1,5.
i i ' . 3-1- D
3-3- i = i ' :
3 : , : 633nmλ = ( I 1: . , a
D , )1.( 1-
: θ -2 a
λ θ =
a L
λ =.
a :38 L mm=3 D m=. 2-2- a
( II 2: n=1,61
)2 ) . . 1- . .ν -2 83.10 /C m s=.
3-:
n V
A 30: . D -3-2 = °.
A
nm768=λ - . 1 D >>a2 D>>a1 D=2,5m .a 1>a2 a2 a1
( . )()(
0,75
mm L 20= a1 a2 2 (
2.
. θ ) 0,5
:1(. D λ L a1 θ 1 (
. a1 1 (
.
2 a : )(
.....................................................................................................................................................................
: . . θ 2 ((
5,0 rad 1 a
λ θ = :
.....................................................................................................................................................................
D
. 1a .
0,000
0,005
0,010
0,015
0,020
0,025
θ (
)
-II λ
a
1
2 θ θ
D L
3 D=1.5m
L
31 θ a λ
32 nm λ 5
5
. 50i A 60
nm3,6561
.) ( nm6,4872
612,11 n671,12
2 .
: 3
) . ( 4
: 18 .10.3 smc
i
°= 60 A n .
.°= 50i )1°
=
+
)3° . n = 1,95: D m
)° 4 m µ λ 2 1 m µ λ = 3
2 = . )° 5 (2) (1) . )° 6 D 1 . (1) .n 1 = 1,74 )° 7 m f ='33,0 (2)