Video: Lub suab tsis tuaj yeem hloov kev coj ua?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Piv txwv li, suab nrov paub tias refract thaum taug kev hla dej. Txawm tias cov suab yoj tsis yog raws nraim hloov media, nws yog taug kev los ntawm qhov nruab nrab nrog ntau yam khoom; yog li ntawd, cov vuag yuav ntsib refraction thiab hloov nws kev taw qhia.
Hais txog qhov no, dab tsi tshwm sim rau lub suab nthwv dej uas khoov?
Refraction. Diffraction muaj cov khoov los yog kis tawm ntawm ib suab yoj nyob rau hauv ib qho nruab nrab, uas ceev ntawm suab yog tas li. Lwm qhov tseem ceeb nyob rau hauv uas suab waves khoov los yog nthuav tawm yog hu ua refraction. Qhov no phenomenon muaj xws li cov khoov ntawm a suab yoj vim hloov pauv hauv nthwv dej ceev.
Kuj Paub, qhov twg ua suab nthwv dej refract? Khoov ntawm acoustic rays nyob rau hauv txheej inhomogeneous media tshwm sim ntawm ib txheej nrog ib tug me me. suab ceev. Cov nyhuv no yog lub luag hauj lwm rau kev qhia propagation ntawm suab nrov dhau qhov kev ncua deb hauv dej hiav txwv thiab hauv huab cua. Nyob rau hauv cov huab cua, ntsug gradients ntawm cua ceev thiab kub ua rau refraction.
Tom qab ntawd, lub suab tsis tuaj yeem polarized?
Teb: Suab nrov , yog longitudinal, txhais tau hais tias lawv oscillate parallel rau cov kev taw qhia ntawm lawv cov lus tsa suab. Vim tsis muaj ib feem ntawm a suab yoj oscillation uas yog perpendicular rau nws txoj kev txav, suab nrov ua tsis tau polarized.
Vim li cas suab refract underwater?
Refraction tshwm sim tsis tsuas yog thaum lub teeb txav ntawm dej mus rau huab cua, tab sis thaum twg qhov ceev ntawm lub teeb hloov. Txij li thaum suab kev hloov ceev nrog kev hloov ntawm qhov kub thiab txias, salinity, thiab siab, a suab wave yuav thim rov qab raws li nws txav los ntawm dej hiav txwv.
Pom zoo:
Vim li cas suab tsis tuaj yeem polarized?
Teb: Suab nthwv dej, yog longitudinal, txhais tau hais tias lawv oscillate parallel mus rau cov kev taw qhia ntawm lawv cov lus tsa suab. Txij li thaum tsis muaj ib feem ntawm lub suab nthwv dej oscillation uas yog perpendicular rau nws cov lus tsa suab, suab tsis tuaj yeem polarized
Kev sib hloov puas tuaj yeem hloov tau los ntawm kev xav?
Ib qho kev txhais lus tuaj yeem hloov tau los ntawm ob qhov kev xav. Ib qho kev txhais lus tuaj yeem hloov tau los ntawm ob qhov kev sib hloov
Vim li cas qee qhov kev hloov pauv tsis tuaj yeem thim rov qab?
Nws yuav ua tsis tau ntawv dua. Koj qhov siab yuav txo qis. Cov no yog cov kev hloov pauv tsis tau. Lawv tsis tuaj yeem thim rov qab txhua. Qhov sib txawv ntawm kev hloov pauv tsis tau thiab hloov tsis tau rov qab. Cov kev hloov pauv hloov tsis hloov Cov kev hloov pauv Feem ntau cov kev hloov ntawm lub cev yog hloov pauv tau. Tag nrho cov tshuaj hloov pauv yog hloov tsis tau
Lub ntsiab lus ntawm kev coj noj coj ua yog dab tsi?
Hauv kev nkag siab, nws yog hais txog cov dej ntws. Tab sis nws yog siv ntau dua los tham txog kev tuaj ua ke ntawm yam lossis cov tswv yim, lossis ntawm kab lis kev cai hauv ntau lub nroog. Con- txhais tau tias 'nrog,' thiab -fluence suab zoo li ' ntws.' Thaum tej yam los ua ke zoo li cov dej ntws, ntws los ntawm txhua qhov chaw sib txawv, koj hu qhov kev sib tshuam
Cov ntaub ntawv dab tsi tuaj yeem ua suab tsis dhau mus?
Lub suab, txawm li cas los xij, tsis tuaj yeem taug kev los ntawm lub tshuab nqus tsev: nws ib txwm yuav tsum muaj qee yam taug kev los ntawm (paub tias yog qhov nruab nrab), xws li huab cua, dej, iav, lossis hlau