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.
Yuav ua li cas yog thawj txoj cai ntawm photoelectric nyhuv?
Peb txoj cai ntawm cov nyhuv photoelectric yog raws li hauv qab no; 1) Lub emission ntawm electrons los ntawm qhov chaw nres tom qab ib tug tej zaus hu ua qhov pib zaus2) Tus naj npawb ntawm electrons uas tawm ntawm qhov chaw yog ncaj qha proportional rau qhov siv ntawm qhov teeb meem. teeb.
Leej twg pom photoelectric effect chav kawm 12?
In 19887 German physicist, Heinrich Rudolf Hertz nrhiav pom cov nyhuv photoelectric thaum ua haujlwm ntawm cov xov tooj cua cuam tshuam. Hertz tau ua qhov kev soj ntsuam tias thaum lub teeb ultraviolet ci rau ntawm ob lub hlau electrodes uas muaj peev xwm sib txawv siv thoob plaws lawv, lub teeb hloov qhov hluav taws xob ntawm qhov hluav taws xob tshwm sim.
Einstein txoj kev xav ntawm photoelectric effect yog dab tsi?
Cov nyhuv photoelectric yog qhov tshwm sim uas cov hluav taws xob tawm ntawm cov hlau nto thaum lub teeb ntawm qhov txaus txaus yog tshwm sim rau. Qhov no txhais tau hais tias lub zog kinetic ntawm electrons nce nrog lub teeb siv. …
plaub txoj cai ntawm kev siv hluav taws xob yog dab tsi?
Lub sij hawm nkag ntawm qhov teeb meem ntawm lub teeb thiab emission ntawm electron yog nil Qhov zaus ntawm qhov teeb meem ntawm cov khoom txiav txim siab lub zog kinetic ntawm cov hluav taws xob emitted. Tus naj npawb ntawm cov electrons emission thiab qhov siv ntawm lub teeb teeb meem yog proportional rau ib leeg.
