Video: Reflection suab yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum twg suab taug kev nyob rau hauv ib qho nruab nrab muab, nws ntaus nto ntawm lwm qhov nruab nrab thiab bounces rov qab rau lwm qhov kev coj, qhov tshwm sim no hu ua xav txog ntawm suab . Cov nthwv dej hu ua qhov xwm txheej thiab reflected suab nthwv dej.
Cov lus nug tseem yog, qhov piv txwv ntawm kev xav ntawm lub suab yog dab tsi?
Kev xav yog qhov kev hloov ntawm lub wavefront ntawm ib qho kev sib tshuam ntawm ob qhov kev tshaj tawm sib txawv kom lub wavefront rov qab mus rau hauv nruab nrab los ntawm qhov uas nws pib. Feem ntau piv txwv suav nrog xav txog ntawm lub teeb, suab thiab dej nthwv dej. Hauv acoustics, xav txog ua echoes thiab siv nyob rau hauv sonar.
Ib yam li ntawd, qhov kev xav thiab kev cuam tshuam ntawm lub suab yog dab tsi? Refraction ntawm nthwv dej muaj kev hloov pauv ntawm cov nthwv dej thaum lawv dhau los ntawm ib qho nruab nrab mus rau lwm qhov. Refraction , los yog dabtsi yog khoov ntawm txoj kev ntawm lub nthwv dej, yog nrog los ntawm kev hloov nyob rau hauv ceev thiab wavelength ntawm cov nthwv dej. Piv txwv li, suab nthwv dej paub thim rov qab thaum taug kev hla dej.
Ntxiv mus, dab tsi yog qhov kev siv ntawm kev xav ntawm lub suab?
Reflections ntawm suab yog siv los ntsuas qhov deb thiab ceev ntawm cov khoom hauv qab dej. Txoj kev no hu ua SONAR. Kev ua haujlwm ntawm lub stethoscope kuj yog nyob ntawm kev xav ntawm lub suab . Hauv ib lub stethoscope, lub suab ntawm tus neeg mob lub plawv dhia mus txog tus kws kho mob pob ntseg los ntawm ntau yam reflections ntawm suab.
Dab tsi yog cov khoom siv zoo tshaj plaws los cuam tshuam lub suab?
Hard, reflective, nonporous sab hauv tsev qhov chaw xws li iav, ntoo, plaster, cib thiab pob zeb nqus 2% mus rau 5% ntawm lub suab tawm tsam qhov chaw kom muaj kev cuam tshuam 95% lossis ntau dua ntawm lub suab.
Pom zoo:
Lub npe ntawm cov suab puam hauv North America yog dab tsi?
Sonoran Suab puam
Dab tsi yog reflection refraction thiab diffraction?
Kev xav txog kev hloov pauv ntawm cov nthwv dej thaum lawv dhia tawm ntawm qhov thaiv; refraction ntawm nthwv dej muaj kev hloov pauv ntawm cov nthwv dej thaum lawv dhau los ntawm ib nrab mus rau lwm qhov; thiab diffraction cuam tshuam nrog kev hloov pauv ntawm cov nthwv dej thaum lawv dhau los ntawm qhov qhib lossis ib puag ncig hauv lawv txoj kev
Reflection thiab shearing yog dab tsi?
Ib qho kev xav yog kev hloov pauv uas ua rau daim iav duab ntawm ib qho khoom txheeb ze rau qhov axis ntawm kev xav. Peb tuaj yeem xaiv qhov axis ntawm qhov kev xav hauv lub dav hlau xy los yog perpendicular rau lub dav hlau xy. Shear: - Ib qho kev hloov pauv uas slants cov duab ntawm ib yam khoom hu ua shear transformation
Dab tsi yog qhov piv txwv ntawm specular reflection?
Specular reflection yog kev xav los ntawm daim iav zoo li qhov chaw, qhov uas cov kab hluav taws xob sib luag tag nrho tawm ntawm tib lub kaum sab xis. Piv txwv ntawm kev xav txog kev xav muaj xws li daim iav chav dej, qhov kev xav ntawm lub pas dej, thiab ci ntsa iab ntawm ob lub tsom iav
Lub suab reflection chav kawm 9 yog dab tsi?
Thaum lub suab txav mus rau hauv ib qho nruab nrab, nws tawm tsam qhov chaw ntawm lwm qhov nruab nrab thiab rov qab mus rau lwm qhov kev coj, qhov tshwm sim no hu ua qhov kev xav ntawm lub suab. Cov nthwv dej yog hu ua qhov xwm txheej thiab cuam tshuam lub suab nthwv dej