DATE
DATE
Photo elecbic - Efect for Lanutant
electrte
potcntial difeRN betueen plati A. and B,
the phoko uuTTeut (no 04 e) incWeA oith incTeaim
'
o
h phenomENEN of photaelechie cfeet is obsered when
he emiasion of elechron, b a cubstante unde the acton of
iht ia called photoelechzic elfect
2. for couiant the
ttxtz887)
elechrie intcniky ucqumuy of ight the
DicoveTed by tteirich photo cTenk Vories uith Hupokntia differ eMe betusen
ALcathode -ey and anod t):nd B
reachea a cosnstant
Study of Photo elecbic eect - Cañuider an yauaed glau value beyond which fuztha increast af poktntial diffcrenu
and aHe encloAcd does
4acket in which two elcchrode, A B
<fect photaelechic unrak (umut ia satrated).
amd th light Tadiaton js allowtd to enthe the jacket
througs a quartz winde). The taditin falla on elechrode 3 the plate BL more nd mre e oYk AL the
A called catkode The elechode B con be kept at positiwe Lphotoelechic cumment decre aue this-e pokenial is called
Ngatiye pottntial wzt cathode. A sensitiue ommebeis Hetrding pottntial for a patiulr valua of etarting poktnlial
lput in ciTCuit ta Hecord the cimrenh reuding uom photnelechoA He photo elechie umut becomes Keus and this potential e callad
Th potcutia! differne beluween tthe cathode and auode i
meaxucd by wOHmau KE of photo elchrans,
KE mx=eVo Tnide eNo.
toltee Cathode Collector Plate
4 opping poktutial (Vo) aud max. Ke of phon e (KEmaa)
Emi ter Plate)
does Ma depend on and n ml depcudnt n
inkenaiky af light
cqueuuy of Light
Ccommutatut)
5 Zoy each Substaue thee exit a choachor ste pcquauuy Yo
Such that or nadiati cn with bcqusnuy 36elaus o pkooe
OHL not ecked uomm the snfau. thu ie talled thneahold
Ao tthrenkold avelength
follawing
obsertationy weHe dbsened: 6.A soon Q1ight nctdent on -ke subtoncathe e Qre
emitted ie thoce u no ime lng bélueen madeuu of radialon
Qud
clASSMAte PAGE
PAGE clAssMAte
, DATE DATE
Enteins Explanalon ol phatolechrie elect C19or) Milttkani Vificatuon 0f Etnteins neladion
1te LiLaL kotalion betuween aud KEmax eVowa
Ekchomaqnctit Tadiaton of fncqutny conzùb of smal vnafed by RA Millikan Uuing difezeok matexiala an dorgek..
h
packzl 4called photon each of eneHq4 illuminalad them uith light af difrnt sqienti
LaA LrE d the ooepnding stopping potntal
2.|alhen a plkaton of enexqy hy is ineident on theATfau qraph beluseen aud eVo u a
shraight biau slope
omatuat
J some o it eueHgy s speut in
making
the aud inkacept qise
eVo
3The e at the SuTfae o material ae not lons ely bound
Cndà uequine ninimum euengy for thein liberaln Metal A Actal&
baluThu euexqyi called ttreshold zuezy o wnk
the matuial:u)
hy =KEt n
KE
KE mox sV hy h e Vo. Not:
Rrageztile of ploton
A phntn does Mot haue am maH o chare.
uOF deflected in Bcmd:
wam
B
mBeA at speed ef ightEapc)oa
de Broglie Cmcept n Mattr oaues (1922)
Tnteuaiky (I)
de Broglie pnpased thal wave- parhce dualikyiu not confncd
|to light. Evexything made af cme matanal (micrOscopic o
I
macxoscoplc) zhlbile wae -prticu duality
saturatten
Vo V
Poteutia
classMate PAGE
PAGE clAsSMAte
DATE
Photo elecbic - Efect for Lanutant
electrte
potcntial difeRN betueen plati A. and B,
the phoko uuTTeut (no 04 e) incWeA oith incTeaim
'
o
h phenomENEN of photaelechie cfeet is obsered when
he emiasion of elechron, b a cubstante unde the acton of
iht ia called photoelechzic elfect
2. for couiant the
ttxtz887)
elechrie intcniky ucqumuy of ight the
DicoveTed by tteirich photo cTenk Vories uith Hupokntia differ eMe betusen
ALcathode -ey and anod t):nd B
reachea a cosnstant
Study of Photo elecbic eect - Cañuider an yauaed glau value beyond which fuztha increast af poktntial diffcrenu
and aHe encloAcd does
4acket in which two elcchrode, A B
<fect photaelechic unrak (umut ia satrated).
amd th light Tadiaton js allowtd to enthe the jacket
througs a quartz winde). The taditin falla on elechrode 3 the plate BL more nd mre e oYk AL the
A called catkode The elechode B con be kept at positiwe Lphotoelechic cumment decre aue this-e pokenial is called
Ngatiye pottntial wzt cathode. A sensitiue ommebeis Hetrding pottntial for a patiulr valua of etarting poktnlial
lput in ciTCuit ta Hecord the cimrenh reuding uom photnelechoA He photo elechie umut becomes Keus and this potential e callad
Th potcutia! differne beluween tthe cathode and auode i
meaxucd by wOHmau KE of photo elchrans,
KE mx=eVo Tnide eNo.
toltee Cathode Collector Plate
4 opping poktutial (Vo) aud max. Ke of phon e (KEmaa)
Emi ter Plate)
does Ma depend on and n ml depcudnt n
inkenaiky af light
cqueuuy of Light
Ccommutatut)
5 Zoy each Substaue thee exit a choachor ste pcquauuy Yo
Such that or nadiati cn with bcqusnuy 36elaus o pkooe
OHL not ecked uomm the snfau. thu ie talled thneahold
Ao tthrenkold avelength
follawing
obsertationy weHe dbsened: 6.A soon Q1ight nctdent on -ke subtoncathe e Qre
emitted ie thoce u no ime lng bélueen madeuu of radialon
Qud
clASSMAte PAGE
PAGE clAssMAte
, DATE DATE
Enteins Explanalon ol phatolechrie elect C19or) Milttkani Vificatuon 0f Etnteins neladion
1te LiLaL kotalion betuween aud KEmax eVowa
Ekchomaqnctit Tadiaton of fncqutny conzùb of smal vnafed by RA Millikan Uuing difezeok matexiala an dorgek..
h
packzl 4called photon each of eneHq4 illuminalad them uith light af difrnt sqienti
LaA LrE d the ooepnding stopping potntal
2.|alhen a plkaton of enexqy hy is ineident on theATfau qraph beluseen aud eVo u a
shraight biau slope
omatuat
J some o it eueHgy s speut in
making
the aud inkacept qise
eVo
3The e at the SuTfae o material ae not lons ely bound
Cndà uequine ninimum euengy for thein liberaln Metal A Actal&
baluThu euexqyi called ttreshold zuezy o wnk
the matuial:u)
hy =KEt n
KE
KE mox sV hy h e Vo. Not:
Rrageztile of ploton
A phntn does Mot haue am maH o chare.
uOF deflected in Bcmd:
wam
B
mBeA at speed ef ightEapc)oa
de Broglie Cmcept n Mattr oaues (1922)
Tnteuaiky (I)
de Broglie pnpased thal wave- parhce dualikyiu not confncd
|to light. Evexything made af cme matanal (micrOscopic o
I
macxoscoplc) zhlbile wae -prticu duality
saturatten
Vo V
Poteutia
classMate PAGE
PAGE clAsSMAte
