Video: Lub teeb lub raj yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tube zoo li fluorescent teeb yog term cev light . Tube teeb yog a teeb uas ua haujlwm ntawm qhov tsis tshua muaj siab mercury vapor discharge tshwm sim thiab hloov ultra violate ray mus rau pom cov duab hluav taws xob nrog kev pab los ntawm phosphor coated hauv iav cev.
Ua li no, lub teeb lub raj ua haujlwm li cas?
Fluorescent teeb los yog tubelight ua haujlwm los ntawm ionizing mercury vapor hauv ib khob cev . Qhov no ua rau cov hluav taws xob hauv cov pa tawm tawm photons ntawm UV zaus. The UV teeb yog hloov dua siab tshiab rau hauv tus qauv pom teeb siv cov phosphor txheej rau sab hauv cev.
Dab tsi yog choke nyob rau hauv tube teeb? Lub hom phiaj ntawm choke yog muab ib qho hluav taws xob siab heev pib ntawm cov filaments (dhau ntawm ob qhov kawg ntawm qhov cev light ). Ib zaug ntxiv gas nyob rau hauv lub cev yog ionized choke muab qhov hluav taws xob tsawg. A choke yog ib co coil. Cov raj fluorescent / teeb muaj mercury vapor.
Cov lus nug tseem yog, lub teeb lub raj yog dab tsi?
1. (Electrical Engineering) ib hom ntawm teeb nyob rau hauv uas ib tug hluav taws xob tso pa tawm yog khaws cia nyob rau hauv a cev nrog ib txheej nyias ntawm phosphor ntawm nws sab hauv. Cov pa roj, uas feem ntau yog mercury vapour, emits ultraviolet hluav taws xob ua rau phosphor rau fluoresce. 2.
Cov khoom siv twg yog siv rau txheej lub teeb lub raj?
phosphor
Pom zoo:
Lub teeb sib tham txog tej yam ntuj tso thiab manmade qhov chaw ntawm lub teeb yog dab tsi?
Tej qhov chaw ntawm lub teeb muaj xws li lub hnub, hnub qub, hluav taws, thiab hluav taws xob nyob rau hauv cua daj cua dub. Tseem muaj qee cov tsiaj thiab nroj tsuag uas tuaj yeem tsim lawv tus kheej lub teeb, xws li fireflies, jellyfish, thiab nceb. Qhov no hu ua bioluminescence. Artificial light yog tsim los ntawm tib neeg
Lub npe ntawm lub raj los ntawm cov pob zeb molten ntws yog dab tsi?
Lub raj lava tsim thaum lub npoo ntawm lava txias thiab tawv, thaum lub molten sab hauv ntws los ntawm thiab ntws tawm. 21. Tshauv yog qhov thib ob tsawg tshaj plaws pyroclast
Dab tsi yog qhov txawv ntawm wavelength ntawm lub teeb liab thiab lub teeb violet?
Violet lub teeb yog hluav taws xob hluav taws xob hluav taws xob nrog wavelengths ntawm 410 nanometers thiab lub teeb liab muaj awavelength ntawm 680 nanometers. Qhov ntau ntawm wavelengths (400 - 700 nm) ntawm lub teeb pom kev yog nyob nruab nrab ntawm lub electromagnetic spectrum (Fig.1)
Qhov txawv ntawm lub teeb dawb thiab lub teeb dub yog dab tsi?
Dub tsuas yog qhov tsis muaj lub teeb, vim tias nws tsis nyob los yog vim nws tau nqus thiab tsis pom. Yog li hu ua 'dub teeb' tsuas yog ultra-violetlight, uas yog lub teeb zoo tib yam (electromagneticradiation) uas yog siab tshaj qhov pom spectrum. Lub teeb twg hu ua lub teeb dawb?
Dab tsi yog qhov teeb meem ntawm lub teeb nyob rau hauv lub ntuj hmo ntuj hu ua?
Gegenschein, tseem hu ua Counterglow, oval thaj ntawm faint luminosity raws nraim rau lub hnub nyob rau hauv lub hmo ntuj. Lub thaj ntawm lub teeb yog li faint nws tuaj yeem pom tsuas yog thaum tsis muaj lub hli, nyob deb ntawm lub nroog teeb, thiab nrog lub qhov muag yoog rau qhov tsaus ntuj