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.
Leej twg ua kom pom cov nyhuv photoelectric sim ua ntej?
Qhov tshwm sim tau pom thawj zaug los ntawm Heinrich Hertz hauv 1880 thiab piav qhia los ntawm Albert Einstein hauv 1905 siv Max Planck's quantum theory of light. Raws li thawj qhov kev sim uas pom tau hais tias quantum txoj kev xav ntawm qib zog, kev sim photoelectric effect yog qhov tseem ceeb hauv keeb kwm.
Leej twg yog lub luag haujlwm rau cov nyhuv photoelectric?
Credit rau qhov kev tshawb pom ntawm cov duab hluav taws xob tau muab rau Heinrich Hertz, uas xyoo 1887 pom tias hluav taws xob hla ntawm ob lub spheres yuav tshwm sim yooj yim dua, yog tias nws txoj hauv kev tau illuminated nrog lub teeb los ntawm lwm yam hluav taws xob tawm.
Cov nyhuv photoelectric siv li cas niaj hnub no?
Tus so ntawm photon lub zog hloov mus rau tus nqi tsis zoo, hu ua photoelectron. To taub yuav ua li cas qhov no ua hauj lwm revolutionized niaj hnub physics. Daim ntawv thov ntawm cov nyhuv photoelectric coj peb "lub qhov muag hluav taws xob" qhov rooj qhib, lub teeb ntsuas siv hauv kev yees duab, hnub ci vaj huam sib luag thiab kev luam theej duab.
Vim li cas cov nyhuv photoelectric tshwm sim?
Cov nyhuv photoelectric yog qhov tshwm simuas tshwm sim thaum lub teeb ci rau ntawm qhov chaw hlau ua rau ejection ntawm electrons los ntawm cov hlau ntawd. … Tsawg zaus lub teeb (liab) tsis muaj peev xwm ua rau ejection ntawm electrons los ntawm cov hlau nto. Thaum los yog siab dua qhov pib zaus (ntsuab) electrons raug ejected.
