Video: Dab tsi yog qhov siab tshaj plaws ntawm cov teeb pom kev zoo?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum nws los txog pom lub teeb , cov ntau zaus xim, uas yog violet, kuj muaj lub zog tshaj plaws. Qhov qis tshaj zaus pom lub teeb , uas yog liab, muaj lub zog tsawg tshaj plaws.
Tsis tas li ntawd, qhov zaus ntawm lub teeb pom kev yog dab tsi?
Electromagnetic tawg nyob rau hauv qhov ntau ntawm wavelengths yog hu ua pom lub teeb los yog yooj yim teeb . Ib tug tib neeg lub qhov muag yuav teb rau wavelengths li ntawm 380 mus rau 740 nanometers. Nyob rau hauv cov nqe lus ntawm zaus , qhov no sib raug rau ib pab pawg nyob ze ntawm 430-770 THz.
Ib yam li ntawd, cov xim ntawm cov teeb pom kev zoo li cas muaj zog tshaj plaws? Wave nrog luv wavelength muaj lub zog tshaj plaws. Cov nthwv dej liab muaj qhov ntev wavelength (hauv 700 nm ntau), thiab violet nthwv dej yog luv luv - kwv yees li ib nrab ntawm qhov ntawd. Vim violet nthwv dej muaj qhov luv tshaj wavelength ntawm pom lub teeb spectrum, lawv nqa lub zog tshaj plaws.
Yog li ntawd, qhov ntau zaus ntawm pom lub teeb hauv Hertz yog dab tsi?
Pom lub teeb Nws muaj lub wavelength ntawm ~ 400nm txog ~ 700nm. Violet teeb muaj wavelength ntawm ~ 400 nm, thiab a zaus ntawm 7.5 * 1014 Hz.
Qhov twg muaj ntau zaus liab lossis xiav lub teeb?
Lub teeb liab (ntawm ib kawg ntawm qhov pom spectrum) muaj lub wavelength ntev dua lub teeb xiav . Nco ntsoov tias thaum wavelength nce, zaus txo. Tab sis muaj nthwv dej nrog siab dua frequencies (luv wavelengths) dua lub teeb xiav thiab nthwv dej nrog qis frequencies (ntev wavelengths) dua lub teeb liab.
Pom zoo:
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