Video: Lub teeb twg siv rau hauv cov nyhuv photoelectric?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Einstein siv particle theory ntawm teeb piav qhia txog cov nyhuv photoelectric raws li qhia hauv daim duab hauv qab no. Daim duab 1. Tsawg zaus teeb (liab) tsis tuaj yeem ua rau ejection ntawm electrons los ntawm cov hlau nto. Thaum los yog siab tshaj qhov pib zaus (ntsuab) electrons raug rho tawm.
Tsuas yog li ntawd, vim li cas lub teeb monochromatic siv hauv cov nyhuv photoelectric?
Qhov kev sim ntawm cov nyhuv photoelectric yog feem ntau ua los ntawm scanning los ntawm ib tug tas mus li ntau yam ntawm monochromatic wavelengths los ntawm qis mus rau siab zog. Raws li kev soj ntsuam txuas ntxiv mus rau wavelengths nrog lub zog ntau dua, cov hluav taws xob hluav taws xob yuav nce hauv lub zog kinetic.
Tsis tas li ntawd, piv txwv li photoelectric effect yog dab tsi? Xav txog ib tug marble ncig hauv lub qhov dej, uas yuav zoo li ib tug khi electron rau ib lub atom. Thaum lub photon los rau hauv, nws tsoo lub marble (los yog electron), muab lub zog txaus kom khiav tawm ntawm lub qhov dej. Qhov no piav qhia txog tus cwj pwm ntawm lub teeb ci ntsa iab hlau.
Kuj kom paub yog, dab tsi yog qhov cuam tshuam photoelectric pov thawj txog lub teeb?
Cov cov nyhuv photoelectric txhawb txoj kev xav particle ntawm teeb nyob rau hauv hais tias nws coj zoo li kev sib tsoo elastic (ib qho uas txuag txhua lub zog) ntawm ob qhov, photon ntawm teeb thiab electron ntawm cov hlau. Qhov tsawg kawg nkaus ntawm lub zog xav tau los tshem tawm cov hluav taws xob yog lub zog khi, BE.
Dab tsi txiav txim siab yog tias cov nyhuv photoelectric tshwm sim?
Cov photoelectric nyhuv tshwm sim thaum lub teeb ci rau ntawm ib lub hlau. Kev kwv yees ntawm txoj kev xav nthwv dej ntawm lub teeb: Lub teeb ntawm txhua zaus yuav ua rau cov hluav taws xob tawm. Lub teeb hnyav dua qhov kinetic zog ntau lub emitted electrons yuav muaj.
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