Video: Yuav ua li cas koj xam lub zog ntawm ib tug electromagnetic yoj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov zog nqa los ntawm ib qho yoj yog proportional rau nws amplitude squared. Rau electromagnetic tsis , qhov no txhais tau tias kev siv zog tuaj yeem qhia tau tias Iave = cϵ0E202 I ave = c ϵ 0 E 0 2 2, qhov twg kuvave yog qhov nruab nrab siv hauv W / m2, thiab E0 yog lub siab tshaj plaws hluav taws xob teb lub zog ntawm ib tug nruam sinusoidal yoj.
Kuj tseem yuav paub yog, lub zog ntawm electromagnetic yoj yog dab tsi?
Electromagnetic tsis coj zog mus rau hauv ib qho system los ntawm kev tsim txiaj ntawm lawv cov hluav taws xob thiab cov hlau nplaum. Cov teb no tuaj yeem siv zog thiab txav mus rau hauv qhov system thiab, yog li, ua haujlwm rau lawv. Txawm li cas los xij, muaj zog hauv ib electromagnetic yoj nws tus kheej, txawm nws yog absorbed los tsis.
Ib tug kuj yuav nug, ua li cas koj xam lub zog ntawm hluav taws xob? Cov zog txuam nrog ib tug photon yog muab los ntawm E = h ν, qhov twg E yog tus zog (SI units ntawm J), h yog Planck qhov tas li (h = 6.626 x 10–34 J s), thiab ν yog qhov zaus ntawm qhov hluav taws xob (SI units of s–1 los yog Hertz, Hz) (saib daim duab hauv qab no).
Ib yam li ntawd ib tug yuav nug, dab tsi yog lub hauv paus ntawm lub zog ntawm electromagnetic tsis?
Electromagnetic tsis yog form of zog emitted los ntawm kev txav cov khoom siv hluav taws xob. Thaum zoo li no nthwv dej taug kev los ntawm qhov chaw lossis los ntawm qhov nruab nrab gravitational tsawg, lawv nyiam muaj qhov sib nqus. Raws li qhov txhais tau hais tias, kev tsim / tsim ntawm electromagnetic tsis pib los ntawm ib tug nqi particle.
Lub zog ntawm electromagnetic yoj nyob ntawm seb dab tsi?
Tau kawg tag nrho lub zog ntawm electromagnetic hluav taws xob nyob ntawm lub amplitude. Qhov tseeb qhov zog ntawm a yoj nyob ntawm lub square ntawm nws amplitude. Nws yog yooj yim to taub nyob rau hauv cov nqe lus ntawm photons. Qhov zaus qhia koj tias muaj zog npaum li cas ntawm ib qho photon.
Pom zoo:
Yuav ua li cas koj xam qhov ceev ntawm electromagnetic tawg?
Qhov ceev ntawm txhua lub sijhawm yoj yog qhov khoom ntawm nws qhov wavelength thiab zaus. v = λf. Qhov ceev ntawm ib qho hluav taws xob nthwv dej hauv qhov chaw dawb yog qhov ceev ntawm lub teeb c = 3 * 108 m / s. Electromagnetic nthwv dej tuaj yeem muaj qhov wavelength λ los yog zaus f ntev li λf = c
Yuav ua li cas koj xam lub zog siv zog thiab nyob deb?
Txij li qhov kev siv zog yog lub zog ntawm ib cheeb tsam, yog tias koj faib lub zog ntawm qhov chaw los ntawm thaj tsam ntawm tus kheej, koj yuav suav qhov kev siv ntawm qhov deb ntawm r los ntawm qhov chaw. Hloov cov qauv no ua rau koj xam lub zog ntawm qhov chaw: P = 4πr2I
Yuav ua li cas tshwm sim thaum koj sib tov ib tug muaj zog acid nrog ib tug tsis muaj zog puag?
Hom 2: thaum muaj zog acid / base reacts nrog lub hauv paus tsis muaj zog / acid yog hydronium thiab hydroxyl ions tam sim no nyob rau hauv sib npaug amt ces ntsev thiab dej yog tsim thiab lub zog tso tawm uas tsawg tshaj li 57 kj / mole vim lub dissociation ntawm lub tsis muaj zog acid / puag uas feem ntau endothermic
Lub zog zoo li cas yog lub teeb lub zog hloov dua siab tshiab kom lub tshuab xam zauv ua haujlwm?
Kab nyob rau sab saum toj ntawm lub tshuab xam zauv. Ua li cas lub zog yog lub teeb lub zog hloov dua siab tshiab kom lub tshuab xam zauv ua haujlwm? Lawv hloov lub teeb lub zog rau hauv hluav taws xob hluav taws xob. zaub mov
Yuav ua li cas ib tug geologist yuav qhia tau hais tias ib tug quav yog ib tug syncline thiab anti-line?
Geologic Structures (Part 5) Anticlines yog folds nyob rau hauv uas txhua ib nrab ntawm cov quav dips deb ntawm lub crest. Synclines yog folds nyob rau hauv uas txhua ib nrab ntawm cov quav dips mus rau lub trough ntawm lub quav. Koj tuaj yeem nco qab qhov sib txawv los ntawm kev ceeb toom tias anticlines tsim "A" zoo, thiab synclines tsim hauv qab ntawm "S."