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Summary Chapter 13: Turning Points $7.39
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Summary Chapter 13: Turning Points

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Chapter 13: Turning Points, Physics A-level, AQA. It includes: specific charge of an electron, Millikan’s experiment, light (wave vs particles), photoelectric effect, wave-particle duality, speed of light and relativity and special relativity. It divided in 3 parts: the electron, wave-particle du...

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  • Chapitre 13
  • February 6, 2023
  • 7
  • 2022/2023
  • Summary
  • Secondary school
  • Bachillerato
  • 2
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CH THE ELECTRON



:
Hydrogen gas s discrete substance of gases at low pressure t high voltage
tubes




s
produces water when burned s
glow



Tube Crooke
of
design what causes the glow
's
?
excited electrons caused by nitting
s




electrons




simplified




:
treions
y




C ot L
e -
c


tube


glass at low pressure




as
} light
due to electrons

CURRent because have e
tions excited
-
you electrons




:
:
low pressure avaid collisions




:
b et charge
negarively charge can looseve cexcess s same charge different mass
)
-res
,
mass


positively charge can not loose tre




thermionic emission C
hearing the cathode is much more effective of freeing electroms
:
-ve)
CATHODE
RAYS




J Thomson
.J.
:
cathode rays have
char a
negative
ge
deflection of cathode rays by
:
electric
fields
-
magneric

, method
CROSSED Fields
:
Flemings left hand ruse


the electron to
go straignt
For




force due to E field =
force due to B field

Ee =
Ber
found
relocity
can be




:
şmu




2=ev
electrons specific charge




:
v


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?
e




=
=




m 20
E




B2
w




?
=
z
BZ L




( Erter Ve ZeV L




=E?:
=imv?)
2
B Mc


2




ev
E B <




2
=




?
Mhe




2) Fine beam tube method
:
force
magnetic force provides centriperal
s




elections
moving in a circular path



muz
:
Bel
r



jmrzzev
Ç m
e :




2
V

y Bz
for mula booklet
:
ev
F
=
d
F Bev
=
mu
r =


Be


şmuz
=ev
Millikan method
:
's
Q
=ne
EQ
-mg
laerosals E= -




d


+ Q
w w w w W W w w



d
=mng
F
-
=6TTMrU
GImrv Øa
=F-mg:
terminal
at
relocity

m
4 Tr
=BTTrp
= à
mg=F=
3pg:Ginrr

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