Video: Dab tsi yog kev sib raug zoo ntawm wavelength zaus thiab qhov ceev ntawm lub teeb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub wavelength thiab zaus ntawm teeb muaj kev sib raug zoo. Qhov siab dua zaus , qhov luv wavelength . Vim tag nrho teeb nthwv dej txav los ntawm lub tshuab nqus tsev tib yam ceev , tus naj npawb yoj crests dhau los ntawm ib qho taw tes hauv ib thib ob nyob ntawm qhov wavelength.
Ib sab ntawm qhov no, kev sib raug zoo ntawm kev ceev thiab zaus yog dab tsi?
Ceev = Wave Length x Wave Ntau zaus . Hauv qhov sib npaug no, wavelength yog ntsuas hauv meters thiab zaus ntsuas nyob rau hauv hertz (Hz), los yog tus naj npawb ntawm nthwv dej ib ob. Yog li ntawd, yoj ceev yog muab nyob rau hauv meters ib ob, uas yog lub SI unit rau ceev.
Ib yam li ntawd, zaus thiab wavelength cuam tshuam li cas? Lub wavelength feem ntau yog xaiv los ntawm Greek tsab ntawv lambda (λ). Piv txwv li lub sinusoidal nthwv dej txav ntawm lub nrawm nrawm, wavelength yog inversely proportional rau zaus ntawm nthwv dej: nthwv dej nrog siab dua zaus muaj luv dua wavelengths , thiab qis zaus muaj ntev wavelengths.
Tom qab ntawd, lo lus nug yog, qhov kev sib raug zoo ntawm kev tshaj tawm thiab wavelength yog dab tsi?
Lub nthwv dej nrawm thiab cov wavelength muaj feem xyuam rau lub nthwv dej zaus thiab lub sijhawm los ntawm vw=λT lossis vw=fλ. Lub sijhawm rau ib lub voj voog ua tiav nthwv dej yog lub sijhawm T. Tus naj npawb ntawm nthwv dej ib lub sijhawm yog qhov zaus ƒ. Lub nthwv dej zaus thiab lub sij hawm yog inversely cuam tshuam rau ib leeg.
Dab tsi yog tus qauv rau wavelength?
Wavelength tuaj yeem suav nrog cov qauv hauv qab no: wavelength = yoj tshaj tawm / zaus . Wavelength feem ntau yog qhia nyob rau hauv units ntawm meters. Lub cim rau wavelength yog Greek lambda λ, yog li λ = v / f.
Pom zoo:
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