Nyob rau hauv nplooj ntawv no koj tuaj yeem tshawb pom 12 lub ntsiab lus, cov lus sib piv, cov lus qhia tsis zoo, thiab cov lus hais txog kev cuam tshuam, xws li: khoov, deflect, lub kaum ntse ntse, ncaj, prism, nqaj ntawm lub teeb, diffraction, hnub ci-rays, refraction, polarize thiab tig.
Lo lus refraction txhais li cas?
Kev txhais lus kho mob rau kev cuam tshuam
n. Kev tig los yog khoov ntawm ib qho yoj, xws li lub teeb lossis lub suab nthwv dej, thaum nws dhau los ntawm ib qho nruab nrab mus rau lwm qhov sib txawv. Lub peev xwm ntawm lub qhov muag khoov lub teeb kom cov duab tsom mus rau retina.
Puas thim rov qab muaj lub ntsiab lus zoo ib yam li kev xav?
Cov ntsiab lus: Reflection Vs Refraction
Reflection yog piav raws li rov qab rov qab ntawm lub teeb lossis suab nthwv dej hauv tib qhov nruab nrab, thaum nws poob rau hauv dav hlau. Refraction txhais tau hais tias kev hloov pauv ntawm cov xov tooj cua tsis muaj zog, thaum nws nkag mus rau qhov nruab nrab nrog qhov sib txawv. … Hla lub dav hlau thiab hloov kev taw qhia.
Dab tsi yog qhov txawv ntawm qhov sib txawv thiab qhov txawv?
Refraction yog qhov hloov pauv ntawm cov nthwv dej uas tshwm sim thaum nthwv dej taug kev ntawm ib nrab mus rau lwm qhov. Reffraction ib txwm nrog lub wavelength thiab nrawm hloov. Diffraction yog qhov khoov ntawm nthwv dej nyob ib puag ncig obstacles thiab qhib.
Leej twg muab Snell txoj cai?
Qhib phau ntawv physics thiab koj yuav pom sai sai uas cov kws kho mob hais lus Askiv hu ua "Snell's law". Lub hauv paus ntsiab lus ntawm refraction - paub txog txhua tus neeg uas tau dabbled hauvoptics - muaj npe tom qab tus kws tshawb fawb Dutch Willebrørd Snell (1591–1626), uas thawj zaug tau hais txog txoj cai lij choj hauv phau ntawv sau xyoo 1621.
