2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Einstein thaum kawg tau muab khoom plig Nobel rau Physics hauv xyoo 1921 rau kev piav qhia txog cov nyhuv photoelectric.
Leej twg pom cov nyhuv photoelectric?
Qhov no tau los ua lub npe hu ua photoelectric effect, thiab nws yuav nkag siab hauv xyoo 1905 los ntawm tus kws tshawb fawb hluas hu ua Albert Einstein.
leej twg xub piav qhia txog cov nyhuv photoelectric tiav?
Nws theorized tias lub zog nqa los ntawm txhua lub quantum ntawm lub teeb yog sib npaug rau qhov zaus ntawm lub teeb muab faib los ntawm qhov tsis tu ncua hu ua Planck qhov tas li. Yog li ntawd, nws yog Einsteinuas thawj zaug piav qhia txog cov nyhuv photoelectric.
Qhov kev tshawb xav piav qhia txog cov nyhuv photoelectric?
Photoelectric effect tsuas yog piav qhia los ntawm the quantum concept of radiation. 1) Lub photocurrent yog proportional rau qhov siv ntawm qhov teeb meem hluav taws xob. 2) Qhov loj ntawm kev txwv tsis pub muaj peev xwm thiab yog li qhov siab tshaj plaws kinetic zog ntawm emitted photoelectrons yog proportional rau qhov zaus ntawm emitted tawg.
Einstein photoelectric equation yog dab tsi?
: ib qho kev sib npaug hauv physics muab lub zog kinetic ntawm photoelectron tawm ntawm cov hlau los ntawm kev nqus ntawm cov hluav taws xob quantum: Ek=hν −ω qhov twg Ek yog lub zog kinetic ntawm photoelectron, h yog Planck tas li, ν yog qhov zaus cuam tshuam nrog hluav taws xob quantum, thiab ωkev ua haujlwm ntawm…
Pom zoo:
Vim li cas qhov pib zaus yog qhov tsim nyog rau cov nyhuv photoelectric?
Cov nyhuv photoelectric yog ib qho tshwm sim uas tshwm sim thaum lub teeb ci rau ntawm qhov chaw hlau ua rau cov hluav taws xob tawm ntawm cov hlau ntawd. … Qhov tsawg kawg nkaus zaus uas yuav tsum tau ua rau electron ejection yog hu ua qhov pib zaus.
Qhov twg yog qhov zoo tshaj plaws piav qhia ntawm cov khoom ntawm rhyolite?
Rhyolite yog ib qho extrusive igneous pob zeb nrog cov ntsiab lus silica siab heev. Nws feem ntau yog xim liab lossis grey nrog cov nplej me me uas lawv nyuaj rau saib yam tsis muaj tes lo ntsiab muag. piav qhia ntawm rhyolite yog dab tsi?
Puas tsis yog hlau qhia cov nyhuv photoelectric?
Kev piav qhia: Cov nyhuv Photoelectric tsuas yog rau thawj pab pawg txawm tias tsis yog tag nrho cov ntsiab lus.Yog li nws tsis pom los ntawm cov hlau tsis yog hlau kuj . Nyob rau hauv cov nyhuv no valence electrons ejected los ntawm photometal thaum lub teeb yog absorbed los ntawm cov hlau.
Leej twg piav qhia txog cov nyhuv photoelectric ua ntej?
Qhov no tau paub tias yog cov nyhuv photoelectric, thiab nws yuav nkag siab hauv xyoo 1905 los ntawm tus kws tshawb fawb hluas hu ua Albert Einstein. Einstein txoj kev txaus siab rau kev tshawb fawb tau pib thaum nws muaj 4 lossis 5 xyoos, thiab thawj zaug pom lub tshuab sib nqus.
Qhov kev piav qhia piav qhia txog lub cev tsis muaj zog ntawm tes?
Cov ntsiab lus hauv cov txheej txheem no (10) Cov lus piav qhia twg piav qhia qhov tsis muaj zog, xov paj hlwb? Nyuaj rau palpate, yuav ploj mus thiab tawm, yooj yim obliterated. Thaum piav qhia txog qhov tsis muaj zog ntawm tes tus kws saib xyuas neeg mob yuav tsum sau cov lus nug?
