Cov txheej txheem:
- Leej twg thawj zaug xam qhov loj ntawm ib tug electron?
- Millikan xam qhov loj ntawm ib qho hluav taws xob li cas?
- Vim li cas ib qho hluav taws xob muaj huab cua?
- Leej twg nrhiav tau lub electron?
Video: Leej twg xam qhov loj ntawm ib lub electron?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
J. J. Thomson nrhiav tau lub electron nyob rau hauv 1897 thaum nws ntsuas tus nqi-rau-mass piv rau electrons nyob rau hauv ib tug beam. Tab sis tus nqi ntawm tus nqi thiab seb nws puas yog qhov tseem ceeb tseem qhib cov lus nug. Thomson thiab lwm tus tau sim ntsuas tus nqi hluav taws xob tsis tuaj yeem los ntawm kev saib cov huab ntawm cov tee dej.
Leej twg thawj zaug xam qhov loj ntawm ib tug electron?
Qhov loj-rau-them tus nqi ntawm cov hluav taws xob yog thawj zaug kwv yees los ntawm Arthur Schuster hauv xyoo 1890 los ntawm kev ntsuas qhov deflection ntawm "cathode rays" vim muaj qhov paub sib nqus hauv qhov chaw. cathode ray tube. Nws yog xya xyoo tom qab ntawd J. J.
Millikan xam qhov loj ntawm ib qho hluav taws xob li cas?
Hauv xyoo 1909, Robert Millikan thiab Harvey Fletcher tau ua qhov kev sim roj pooblos txiav txim siab tus nqi hluav taws xob. … Qhov ceev ntawm cov roj tau paub, yog li Millikan thiab Fletcher tuaj yeem txiav txim siab cov tee dej ntawm lawv cov radii pom (txij li ntawm lub radii lawv tuaj yeem xam qhov ntim thiab yog li, qhov loj).
Vim li cas ib qho hluav taws xob muaj huab cua?
tl;dr Electrons yog qhov tseem ceeb thiab yog li tsis muaj ntim. Kev sib cuam tshuam nrog Higgs teb (Higgs boson) muab cov khoom siv hluav taws xob zoo ib yam rau pawg(hais lwm txoj hauv kev, Higgs teb muab cov hluav taws xob nws qhov loj). Peb txoj kev xav yog ib yam dab tsi muaj huab hwm coj vim nws yog ua los ntawm cov khoom.
Leej twg nrhiav tau lub electron?
Txawm tias J. J. Thomsontau lees paub nrog qhov kev tshawb pom ntawm cov hluav taws xob raws li nws qhov kev sim nrog cathode rays hauv xyoo 1897, ntau tus kws kho mob, suav nrog William Crookes, Arthur Schuster, Philipp Lenard, thiab lwm tus, uas tau ua kev sim cathode rays thov. tias lawv deserved qhov credit.
Pom zoo:
Ntawm qhov electrolysis ntawm acidulated dej qhov loj ntawm oxygen?
Vim li no huab hwm coj ntawm liberated oxygen ntawm anode yog 0.8g . Yuav ua li cas thaum cov dej acidulated Electrolysed? Nyob rau hauv electrolysis ntawm acidulated dej, oxygen gas yog hloov zuj zus ntawm lub anode OH – raug nqi tsis zoo, txav mus rau lub anode (zoo them electrode).
Leej twg xav txog qhov kev xav loj loj?
Lub tswv yim no tau tshwm sim thawj zaug hauv daim ntawv tshawb fawb xyoo 1931, hauv ib daim ntawv los ntawm Georges Lemaître, Belgian cosmologist thiab Catholic pov thawj. Txoj kev xav, tau txais los ntawm yuav luag txhua tus neeg astronomers niaj hnub no, yog qhov kev tawm mus los ntawm kev tshawb fawb orthodoxy hauv xyoo 1930 .
Ntawm qhov wavelengths yog qhov nqus ntawm lub teeb loj tshaj?
a) Lub wavelength ntau yam uas nthuav tawm qhov nqus tau zoo tshaj plaws yog 600-670 nm, uas sib haum rau cov xim txiv kab ntxwv thiab liab me ntsis . Dab tsi wavelength absorbs lub teeb tshaj plaws? Plant pigment molecules nqus lub teeb nyob rau hauv lub wavelength ntau ntawm 700 nm txog 400 nm;
Leej twg ua qhov loj me ntawm lub hauv caug ua haujlwm?
Bra qhov ntau thiab tsawg yog nyob ntawm koj qhov loj me (tus lej) thiab koj lub khob loj (tus ntawv). Cov kev ntsuas no feem ntau yog txiav txim los ntawm kev siv daim kab xev ntsuas nyob ib ncig ntawm koj lub tawb tawb thiab bust. Tus lej / ntawv yog koj lub tsho loj.
Lub tswv yim twg yog qhov pom ntawm lub tswv yim ntawm qhov zoo thiab qhov phem?
Kev coj ncaj ncees tuav tias qhov zoo thiab qhov phem yog cov ntsiab lus ruaj khov tsim los ntawm tus vajtswv lossis tus vajtswv, xwm txheej, kev coj ncaj ncees, kev paub zoo, lossis lwm yam. Amoralism hais tias qhov zoo thiab qhov phem tsis muaj qab hau, tias tsis muaj kev coj ncaj ncees hauv qhov xwm txheej .
