2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
EM hluav taws xob yog lub npe vim nws muaj hluav taws xob thiab sib nqus teb uas ib txhij oscillate hauv cov dav hlau sib koom ua ke rau ib leeg thiab rau kev taw qhia ntawm kev nthuav tawm los ntawm qhov chaw. ✓ Electromagnetic tawg muaj ob qhov xwm txheej: nws nthuav tawm cov khoom nthwv dej thiab cov khoom (photon) cov khoom.
Dab tsi yog qhov xwm txheej ntawm hluav taws xob nthwv dej?
Ob qhov xwm txheej ntawm hluav taws xob nthwv dej yog hais txog qhov tseeb tias electromagnetic nthwv dej ua zoo li ob qho yoj thiab ib qho particle.
Dab tsi yog qhov xwm txheej ntawm hluav taws xob?
Lub teeb thiab lwm yam hluav taws xob hluav taws xob muaj ob qhov xwm txheej viz: qhov xwm txheej thiab qhov xwm txheej yoj. Wave Nature of Radiations: Radiation yog daim ntawv ntawm lub zog, uas tuaj yeem hloov ntawm ib qho mus rau lwm qhov chaw hauv qhov chaw. … Qhov deb tau taug kev los ntawm nthwv dej hauv ib pliag yog hu ua qhov nrawm nrawm.
Puas yog hluav taws xob hluav taws xob los ntawm ntuj?
Lub atom yog qhov chaw ntawm txhua daim ntawv ntawm hluav taws xob hluav taws xob, txawm tias pom lossis pom tsis pom. … Cov hluav taws xob muaj zog qis dua, xws li ultraviolet, pom, thiab lub teeb infrared, nrog rau xov tooj cua thiab microwaves, los ntawm huab cua hluav taws xob uas nyob ib puag ncig lub nucleus lossis kev cuam tshuam ntawm ib lub atom nrog lwm tus.
Leej twg muab ob qhov xwm txheej ntawm electromagnetic nthwv dej?
Qhov ob qhov ntawm lub teeb tau txuas ntxiv mus rau ib qhozoo sib xws dual hauv teeb meem thiab. Electrons thiab atoms yog Ameslikas suav hais tias yog corpuscles. Xyoo 1929 Tub Vaj Ntxwv Louis-Victor de Broglie tau txais khoom plig Nobel rau Physics rau "nws qhov kev tshawb pom ntawm nthwv dej ntawm cov hluav taws xob".
Pom zoo:
Puas siv hluav taws xob hauv qhov hluav taws xob tuaj yeem siv rau ntawm qhov loj?
Txawm hais tias tsawg dua, lwm hom kev siv hluav taws xob hauv av tuaj yeem siv los muab ntau lub zog ntau dua. Tapping qhov chaw ntawm cov dej kub faus rau hauv qab lub ntiaj teb saum npoo tuaj yeem muab cua sov rau cov neeg coob coob, thiab tsim kom muaj zog txaus los tsim hluav taws xob loj.
Puas yog cov hluav taws xob muaj hluav taws xob zoo?
Ntau yam tseem ceeb, lossis subatomic, cov khoom ntawm cov khoom muaj cov khoom siv hluav taws xob. Piv txwv li, electrons muaj tus nqi tsis zoothiab protons muaj tus nqi zoo, tab sis neutrons muaj pes tsawg tus nqi. Yuav ua li cas them electrons e nqa?
Puas hluav taws xob hluav taws xob puas tsim hluav taws xob?
Coal feem ntau siv roj los tsim hluav taws xobhauv Tebchaws Meskas. Hauv cov chaw tsim hluav taws xob hluav taws xob hluav taws xob, cov hluav taws xob bituminous, subbituminous thee, lossis lignite raug hlawv. Cov cua kub uas tsim los ntawm kev sib xyaw ntawm cov thee yog siv los hloov cov dej mus rau hauv qhov chaw siab zog, uas tsav lub turbine, uas tsim hluav taws xob.
Lub tshuab hluav taws xob hluav taws xob tsim hluav taws xob li cas?
Piav seb lub twj hluav taws xob hluav taws xob tsim hluav taws xob hla lub membrane li cas. Los ntawm pum electrons hla lub membrane, sab uas cov electrons raug tshem tawm muaj qhov zoo dua, thaum sab tau txais cov hluav taws xob ntau muaj qhov tsis zoo.
Puas yog lub tshuab hluav taws xob puas muaj lub tshuab hluav taws xob?
Vim li cas lub tshuab hluav taws xob sab hauv combustion yuav tsum tsis muaj lub tshuab hluav taws xob los ua kom cov roj tsis zoo li roj av? Spark plugs yog siv nyob rau hauv cov roj cav mus ignite cov pa roj sib tov whereas nyob rau hauv diesel engines lub xub ntiag ntawm lub txim plugs yog tsis tsim nyog.
