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φυσική γ λυκείου
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THOMSON & RUTHERFORDTHOMSON & RUTHERFORD
- -
http://users.dra.sch.gr/filplatakis
(460 370 ..)
.
.
.
,
.
Thomson (1856-1940)
ThomsonThomson
Rutherford (1871-1937)
RutherfordRutherford
ThomsonThomson
, .
, , . , . .
: :
1800 ( ).
Rutherford Rutherford ::
, , ,
: :
, 50 m
- , ..
(): (): (): (): (): ():
()
()
()
( ) ( )
( ) ( ) ( (
) )
...
WHY?WHY?
Rutherford:Rutherford:
, , . . , , MaxwellMaxwell, , . .
) ) ( ); ( );
) ) ( . ( . ););
) ) ;;
Bohr (Bohr ( ) )
, , Coulomb Coulomb
Bohr Bohr ::
1 :1 :
, , . .
Bohr Bohr ::
2 :2 :
nhnrmL
2
n=1,2,3,,
L = mL = mr r h/2h/2..
. . , , . .
Bohr Bohr ::
33 : :
e-
, , . .
Bohr Bohr ::
4 :4 :
: e-
: e-
hf:
e--
+p+
- E-=hf
, , Bohr Bohr ee-- (. ) (. ) : :
: :
rekE2
2
k: , e: ( )r:
E1 E1 (1 = -13,6(1 = -13,6 eV) eV),,
: :
rr11 ee-- (( Bohr) (rBohr) (r11 = 0,53 = 0,531010-10 -10 m)m),,
21 nrrn
21
nEEn
n=1,2,3,,:n=1,2,3,,: ( )( )
-e-
+p+
n=1n=2
n=3
r1r2
r3
3
21
nn ::
n n : :
rr11 EE11 , ,
rrnn = r = r11nn22
: : E Enn = E = E11/n/n22
n
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