Tsuas yog lub sijhawm uas nthwv dej tuaj yeem kis tau hla ib thaj tsam, hloov nws nrawm, thiab tseem tsis thim rov qab yog thaum lub teeb nthwv dej ze rau thaj tsam ntawm ib qho kev coj mus rau nws Ntev npaum li lub teeb nthwv dej hloov ceev thiab mus txog ntawm tus ciam teb ntawm lub kaum sab xis, pom qhov cuam tshuam.
Yuav ua li cas rau wavefronts thaum lub sijhawm refraction?
Yog li yog qhov nruab nrab (thiab nws cov khoom) hloov pauv, qhov nrawm ntawm nthwv dej hloov. … Nkoj taug kev los ntawm qhov kawg ntawm qhov tob mus rau qhov ntiavtuaj yeem pom kom thim rov qab (piv txwv li, khoov), txo qis wavelength (lub wavefronts los ze zog ua ke), thiab qeeb (lawv siv sijhawm ntev dua. lub sij hawm taug kev deb tib yam).
Vim li cas qhov kev cuam tshuam tshwm sim ntawm ib thaj tsam?
Refraction tshwm sim ntawm ciam teb ntawm ob lub xov xwm thaum teeb taug kev los ntawm ib qho nruab nrab mus rau lwm qhov thiab nws qhov nrawm hloov pauv tab sis nws qhov zaus tseem zoo li qub … Qhov no yog vim lub teeb ci tawm mus. cov quav cab hloov kev taw qhia thaum lawv tsoo qhov chaw nruab nrab ntawm cov kua thiab cua.
Vim li cas thiaj tsis muaj qhov cuam tshuam nrog qhov xwm txheej ib txwm?
Thaum lub teeb nyob ntawm qhov xwm txheej ib txwm muaj, hauv dav hlau nthwv dej vector yog xoom, yog li tsis tas yuav muaj qhov cuam tshuam.
Vim li cas qhov kev cuam tshuam tshwm sim ntawm thaj tsam ntawm qhov tob thiab qhov dej ntiav?
Refraction tshwm sim vim qhov nrawm ntawm nthwv dej hloov. … Cov dej nthwv dej taug kev qeeb dua hauv cov dej ntiav. Lub wavelength yuav txo qis thiaj li ua kom qhov zaus tsis tu ncua. Kev hloov hauv wavelength yog proportional rau kev hloov hauv nthwv dej ceev.
