Nyob rau xyoo 1860, Bunsen thiab Kirchhoff nrhiav pom tias Fraunhofer kab sib raug rau cov kab hluav taws xob spectral pom hauv qhov chaw kuaj teeb pom kev zoo. Siv cov kev soj ntsuam thiab cov ncauj lus kom ntxaws spectral, lawv tau dhau los ua thawj qhov kev sib txuas ntawm cov khoom siv tshuaj thiab lawv cov qauv spectral tshwj xeeb.
Leej twg pom atomic emission spectrum?
Qhov kev ua tau zoo ntawm spectra rau cov khoom siv tshuaj tau pib hauv xyoo 1860 nrog kev ua haujlwm ntawm German physicists Robert Bunsen thiab Gustav Kirchhoff, uas pom tias Fraunhofer kab sib haum rau emission spectral kab pom. nyob rau hauv qhov chaw kuaj teeb pom kev zoo.
Leej twg nrhiav tau emission?
txheej txheem no hu ua stimulated emission.” Albert Einsteinthawj zaug broached qhov muaj peev xwm txhawb nqa emission nyob rau hauv daim ntawv 1917, tau tig nws lub xyoo ua ntej los ntawm kev sib piv dav dav rau kev sib cuam tshuam ntawm teeb meem thiab hluav taws xob, thiab yuav ua li cas ob leeg tuaj yeem ua tiav thermal. equilibrium.
Peb siv emission spectrum li cas hnub no?
Cov emission spectrum tuaj yeem siv los txiav txim siab qhov sib xyaw ntawm cov khoom siv, vim nws txawv rau txhua lub caij ntawm lub sijhawm. Ib qho piv txwv yog astronomical spectroscopy: txheeb xyuas qhov muaj pes tsawg leeg ntawm cov hnub qub los ntawm kev txheeb xyuas lub teeb tau txais.
Vim li cas lub emission spectrum tseem ceeb?
Cov xim sib txawv ntawm lub teeb uas tsim los ntawm emission spectra ntawm sib txawv cov ntsiab lus tso cai rau lawv txheeb xyuas. … Yog li cov ntsiab lus tuaj yeem txheeb xyuas los ntawm cov xim uas lawv cov atoms tsim thaum lub zog (los ntawm cua sov lossis hluav taws xob tam sim no) siv los qhia lawv cov ntiv tes tawm.
