Video: Yuav ua li cas koj nrhiav tau yoj ceev muab zaus thiab wavelength?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ceev = Lub wavelength x Wave zaus . Hauv qhov sib npaug no, wavelength yog ntsuas hauv meters thiab zaus ntsuas hauv hertz (Hz), lossis tus lej ntawm nthwv dej ib ob. Yog li ntawd, yoj ceev yog muab hauv meters ib ob, uas yog SI unit rau ceev.
Hauv qhov no, kuv yuav nrhiav tau qhov zaus ntawm nthwv dej li cas?
Wave zaus tuaj yeem yog ntsuas los ntawm suav tus naj npawb ntawm crests lossis compressions uas dhau qhov taw tes hauv 1 thib ob lossis lwm lub sijhawm. Tus lej siab dua, qhov ntau dua yog zaus ntawm yoj . SI unit for wave zaus yog tus hertz (Hz), qhov twg 1 hertz sib npaug 1 yoj dhau qhov taw tes ruaj khov hauv 1 vib nas this.
Dab tsi yog tus qauv rau wavelength? Lub wavelength tuaj yeem suav nrog cov hauv qab no qauv : wavelength = yoj velocity/frequency. Lub wavelength feem ntau yog qhia nyob rau hauv units ntawm meters. Lub cim rau wavelength yog Greek lambda λ, yog li λ = v/f.
Yuav ua li cas koj pom qhov zaus ntawm nthwv dej tsis muaj qhov nrawm?
Rau xam qhov zaus ntawm ib nthwv dej , faib ceev ntawm yoj los ntawm lub wavelength. Sau koj cov lus teb hauv Hertz, lossis Hz, uas yog chav rau zaus . Yog koj xav tau xam qhov zaus los ntawm lub sij hawm nws yuav siv sij hawm kom tiav a yoj cycle, los yog T zaus yuav yog qhov hloov pauv ntawm lub sijhawm, lossis 1 faib los ntawm T.
Tus qauv ntawm zaus yog dab tsi?
Cov qauv rau zaus yog: f ( zaus ) = 1 / T (lub sijhawm). f = c / λ = yoj ceev c (m / s) / wavelength λ (m). Cov qauv rau lub sij hawm yog: T (lub sij hawm) = 1 / f ( zaus ). λ = c / f = nthwv dej ceev c (m / s) / zaus f (Hz).
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