Emission vs Nruam Spectrum
Spectrums yog cov duab ntawm lub teeb. Emission spectrums thiab nruam spectrums yog ob ntawm peb hom spectrums. Lwm hom yog qhov nqus spectrum. Kev siv ntawm spectrums yog loj heev. Nws tuaj yeem siv los ntsuas cov ntsiab lus thiab cov ntawv cog lus ntawm cov khoom sib txuas. Nws txawm tuaj yeem siv los ntsuas qhov deb ntawm cov hnub qub nyob deb thiab galaxies, thiab ntau ntxiv. Txawm tias cov xim peb pom tuaj yeem piav qhia siv lub spectrum. Yog li ntawd, nws yog qhov tshwj xeeb tshaj yog muaj txiaj ntsig kom muaj kev nkag siab zoo hauv cov kev xav thiab kev siv ntawm emission thiab nruam spectrums. Hauv tsab xov xwm no, peb yuav tham txog dab tsi emission spectrum thiab nruam spectrum yog dab tsi, yuav ua li cas lawv tsim tau, qhov zoo sib xws ntawm lawv, lawv daim ntawv thov thiab thaum kawg qhov sib txawv ntawm nruam spectrum thiab emission spectrum.
Nruam Spectrum yog dab tsi?
Yuav kom nkag siab qhov txuas mus ntxiv ib qho yuav tsum xub nkag siab qhov xwm txheej ntawm cov hluav taws xob hluav taws xob. Electromagnetic yoj yog ib nthwv dej uas muaj hluav taws xob thiab ib qho chaw sib nqus, uas nyob rau ib leeg. Electromagnetic nthwv dej tau muab faib ua ntau thaj chaw raws li lawv lub zog. X-rays, ultraviolet, infrared, pom, xov tooj cua tsis muaj npe rau qee qhov ntawm lawv. Txhua yam peb pom yog vim qhov pom thaj tsam ntawm electromagnetic spectrum. Ib qho spectrum yog zajlus ntawm kev siv zog piv rau lub zog ntawm electromagnetic rays. Lub zog kuj tuaj yeem sawv cev hauv wavelength lossis zaus. Ib qho spectrum txuas ntxiv yog ib qho spectrum uas tag nrho cov wavelengths ntawm cheeb tsam xaiv muaj kev siv zog. Lub teeb dawb zoo meej yog lub spectrum txuas ntxiv mus rau thaj tsam pom. Nws yuav tsum tau muab sau tseg tias, nyob rau hauv kev xyaum, nws yog tsis yooj yim sua kom tau ib tug zoo meej spectrum.
Emission Spectrum yog dab tsi?
Yuav kom nkag siab qhov kev xav tom qab emission spectrum ib tus yuav tsum xub nkag siab txog cov qauv atomic. Lub atom muaj ib tug nucleus, uas yog tsim los ntawm protons thiab neutrons, thiab electrons, uas yog orbiting nyob ib ncig ntawm lub nucleus. Lub orbit ntawm ib tug electron nyob ntawm lub zog ntawm lub electron. Siab dua lub zog ntawm electron deb deb ntawm lub nucleus nws yuav orbit. Siv quantum txoj kev xav nws tuaj yeem pom tau tias cov hluav taws xob tsis tuaj yeem tsuas yog tau txais qib zog xwb. Cov hluav taws xob hluav taws xob muaj peev xwm muaj tsis sib xws. Thaum ib qho piv txwv ntawm atoms muab nrog ib tug nruam spectrum nyob rau hauv ib co cheeb tsam, cov electrons nyob rau hauv lub atoms nqus ib tug npaum li cas ntawm lub zog. Txij li thaum lub zog ntawm electromagnetic yoj kuj quantized, nws muaj peev xwm hais tias cov electrons nqus photons nrog ib tug tshwj xeeb energies. Tom qab qhov xwm txheej no, cov spectrum txuas ntxiv raug tshem tawm, tom qab ntawd cov electrons ntawm cov atoms yuav sim rov qab los rau hauv av. Qhov no yuav ua rau cov photons hauv cov zog tshwj xeeb raug tso tawm. Cov photons no tsim ib qho emission spectrum, uas tsuas muaj cov kab ci sib xws rau cov photons.
Qhov txawv ntawm emission spectrum thiab nruam spectrum yog dab tsi?
• Lub spectrum tsis tu ncua yog thaj chaw kaj nrig nrog tag nrho cov wavelengths ntawm cheeb tsam xaiv tam sim no.
• Ib qho emission spectrum tsuas muaj cov kab ci ntsa iab nyob rau hauv ib cheeb tsam tsaus ntuj uas sib haum nrog cov photons absorbed thiab emitted los ntawm electrons.
