Qhov txawv ntawm Wavelength thiab Amplitude

Qhov txawv ntawm Wavelength thiab Amplitude
Qhov txawv ntawm Wavelength thiab Amplitude

Video: Qhov txawv ntawm Wavelength thiab Amplitude

Video: Qhov txawv ntawm Wavelength thiab Amplitude
Video: xov xwm tshwm sim hauv teb chaws thiab txawv teb chaws 2024, Lub Xya hli ntuj
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wavelength vs Amplitude

wavelength thiab amplitude yog ob lub zog ntawm nthwv dej thiab kev vibrations. Wavelength yog ib qho cuab yeej ntawm nthwv dej tab sis lub amplitude yog cov cuab yeej ntawm nthwv dej nrog rau kev oscillation. Lub ntsiab lus ntawm wavelength thiab amplitude yog dav siv nyob rau hauv teb xws li nthwv dej thiab kev vibrations, kev sib txuas lus, lub teeb thiab lwm yam hluav taws xob hluav taws xob hluav taws xob thiab ntau yam hauj lwm. Hauv tsab xov xwm no, peb yuav tham txog dab tsi wavelength thiab amplitude yog, lawv cov ntsiab lus, qhov zoo sib xws ntawm ob qho no, lawv daim ntawv thov thiab thaum kawg qhov txawv ntawm wavelength thiab amplitude.

Amplitude

Amplitude yog ib qho tseem ceeb heev ntawm kev txav mus los. Yuav kom nkag siab lub tswv yim ntawm amplitude cov khoom ntawm harmonic motions yuav tsum to taub. Ib qho yooj yim harmonic motion yog ib qho kev txav xws li kev sib raug zoo ntawm qhov kev hloov pauv thiab qhov nrawm yuav siv daim ntawv ntawm a=-ω2 x qhov "a" yog qhov nrawm thiab "x" yog qhov hloov chaw. Lub acceleration thiab kev hloov chaw yog antiparallel. Qhov no txhais tau hais tias lub net quab yuam ntawm cov khoom kuj yog nyob rau ntawm cov kev taw qhia ntawm acceleration. Qhov kev sib raug zoo no piav qhia txog kev txav mus los qhov twg cov khoom yog oscillating txog lub hauv paus ntsiab lus. Nws tuaj yeem pom tias thaum qhov kev hloov pauv yog xoom lub zog ntawm cov khoom kuj yog xoom. Qhov no yog qhov sib npaug ntawm qhov oscillation. Qhov siab tshaj plaws txav ntawm cov khoom los ntawm qhov sib npaug ntawm qhov sib npaug yog hu ua amplitude ntawm oscillation. Lub amplitude ntawm ib qho yooj yim harmonic oscillation nruj me ntsis nyob ntawm tag nrho cov neeg kho tshuab zog ntawm lub system. Rau lub caij nplooj ntoos hlav yooj yim - huab hwm coj system, yog tias tag nrho lub zog sab hauv yog E amplitude yog sib npaug rau 2E / k, qhov twg k yog lub caij nplooj ntoos hlav tas li ntawm lub caij nplooj ntoos hlav. Nyob rau hauv lub amplitude, lub instantaneous tshaj tawm yog xoom yog li lub kinetic zog kuj yog xoom. Tag nrho lub zog ntawm lub cev yog nyob rau hauv daim ntawv ntawm lub zog muaj peev xwm. Ntawm qhov sib npaug, lub zog muaj peev xwm dhau los ua xoom.

wavelength

Wavelength yog ib lub tswv yim sib tham hauv qab nthwv dej. Lub wavelength ntawm nthwv dej yog qhov ntev uas cov duab ntawm nthwv dej pib rov ua nws tus kheej. Qhov no tseem tuaj yeem txhais tau tias siv qhov sib npaug nthwv dej. Rau ib lub sij hawm nyob ntawm yoj sib npaug ψ (x, t), nyob rau hauv ib lub sij hawm muab yog ψ (x, t) yog sib npaug rau ob x qhov tseem ceeb thiab tsis muaj cov ntsiab lus ntawm ob lub ntsiab lus uas muaj tib ψ tus nqi, qhov sib txawv ntawm x qhov tseem ceeb yog lub npe hu ua wavelength ntawm lub nthwv dej. Kev sib raug zoo ntawm lub wavelength, zaus thiab qhov tshaj tawm ntawm nthwv dej yog muab los ntawm v=f λ qhov twg f yog qhov zaus ntawm nthwv dej thiab λ yog lub wavelength. Rau qhov muab nthwv dej, txij li lub nthwv dej nrawm tas li lub wavelength ua inversely proportional rau zaus.

Dab tsi yog qhov txawv ntawm Wavelength thiab Amplitude?

• Wavelength yog ib qho cuab yeej uas txhais tau tias tsuas yog nthwv dej xwb tab sis qhov amplitude txhais tau tias yog kev vibrations lossis oscillations.

• Wavelength yog ib yam khoom uas txuas nrog lub nrawm thiab zaus ntawm nthwv dej, qhov amplitude yog ib yam khoom uas nyob ntawm tag nrho lub zog ntawm oscillation.

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