Video: Yuav ua li cas wavelength muaj feem xyuam rau qhov ceev ntawm lub teeb nyob rau hauv ib tug nruab nrab?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov ceev ntawm lub teeb nyob rau hauv ib tug nruab nrab yog v = cn v = c n, qhov twg n yog nws qhov Performance index ntawm refraction. Qhov no txhais tau tias v = f λ ,qha l yog cov wavelength hauv a nruab nrab thiab tias λn = λn λ n = λ n, qhov twg λ yog wavelength hauv lub tshuab nqus tsev thiab n yog qhov nruab nrab index ntawm refraction.
Ib yam li ntawd, kev sib raug zoo ntawm wavelength thiab ceev ntawm lub teeb yog dab tsi?
Cov kev sib raug zoo ntawm qhov zaus (tus naj npawb ntawm nthwv dej crests uas dhau los ntawm qee qhov taw tes hauv lub sijhawm muab) thiab wavelength rau electromagnetic tsis yog txhais los ntawm cov mis, c = λ f, qhov twg c yog tus ceev ntawm lub teeb ,l ua wavelength hauv meters, thiab f sib npaug ntawm zaus hauv cycles ib ob.
Ib yam li ntawd, vim li cas qhov ceev ntawm lub teeb hloov hauv cov nruab nrab sib txawv? Ceev ntawm lub teeb tsis hloov , nws yuav tsum tau mus ntau dua nyob rau hauv ib nruab nrab tshaj hauv lub tshuab nqus tsev, Thaum teeb yog hla a nruab nrab , cov electrons nyob rau hauv lub nruab nrab absorbs lub zog los ntawm lub teeb thiab tau zoo siab thiab tso lawv rov qab. Yog li teeb interacts nrog particle nyob rau hauv lub nruab nrab , uas ua rau qeeb.
Kuj paub, puas wavelength ntawm lub teeb nyob ntawm nruab nrab?
Wavelength nyob ntawm ntawm nruab nrab (piv txwv li, lub tshuab nqus tsev, huab cua, lossis dej) uas nthwv dej hla. Piv txwv ntawm nthwv dej yog suab nthwv dej, teeb , dej nthwv dej thiab lub sijhawm hluav taws xob teeb liab hauv ib tus neeg xyuas pib.
Kev sib raug zoo ntawm kev ceev thiab zaus yog dab tsi?
Saib, zaus yog qhov ntsuas kom muaj nuj nqis rau ceev . Ntau zaus yog txhais raws li tus naj npawb ntawm cov voj voog ua tiav ib ob los ntawm ib qho khoom tig uas yog rotor nyob rau hauv lub synchronous alternator. Yog ceev nce, tus naj npawb ntawm cov voj voog them los ntawm rotor ib thib ob nce thiab yog li nce zaus.
Pom zoo:
Yuav ua li cas koj pom qhov nruab nrab thiab nruab nrab ntawm daim duab peb sab?
Txhawm rau nrhiav qhov chaw nruab nrab ntawm daim duab peb sab, nws yog qhov yooj yim tshaj plaws los kos tag nrho peb qhov nruab nrab thiab nrhiav lawv qhov kev sib tshuam. Txhawm rau kos qhov nruab nrab ntawm daim duab peb sab, ua ntej nrhiav qhov nruab nrab ntawm ib sab ntawm daim duab peb sab. Kos ib kab ntu uas txuas qhov taw tes no mus rau qhov rov qab vertex
Yuav ua li cas ib tug capita tus nqi ntawm cov pejxeem loj hlob muaj feem xyuam rau cov pejxeem?
Kev loj hlob ntawm pej xeem yog ntsuas nyob rau hauv cov tib neeg nyob rau hauv ib tug pej xeem (N) dhau sij hawm (t). Per capita txhais tau hais tias ib tus neeg, thiab qhov kev loj hlob ntawm ib tus neeg muaj feem cuam tshuam txog tus naj npawb ntawm kev yug thiab kev tuag hauv cov pejxeem. Qhov sib npaug ntawm kev loj hlob hauv logistic xav tias K thiab r tsis hloov lub sijhawm hauv cov pejxeem
Yuav ua li cas koj sau ib feem raws li ib tug khoom ntawm ib tug tag nrho cov zauv thiab ib feem feem?
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Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm
Vim li cas qhov ceev ntawm lub teeb hloov nyob rau hauv txawv nruab nrab?
Kev nrawm ntawm lub teeb tsis hloov, nws yuav tsum tau mus ncig ntau dua hauv qhov nruab nrab dua li hauv lub tshuab nqus tsev, Thaum lub teeb dhau los ntawm qhov nruab nrab, cov hluav taws xob hauv nruab nrab absorbs lub zog ntawm lub teeb thiab zoo siab thiab tso tawm rov qab. Tsuas yog vim li cas vim li cas photon tuaj yeem taug kev ntawm lub teeb nrawm yog vim nws loj dua