Dab tsi ntawm spectrum yog hnub ci?
Dab tsi ntawm spectrum yog hnub ci?

Video: Dab tsi ntawm spectrum yog hnub ci?

Video: Dab tsi ntawm spectrum yog hnub ci?
Video: yog hmoov dab tsi. Zoo Xyooj (cover) 2024, Kaum ib hlis
Anonim

Xws li ib lub spectrum los ntawm lub hnub yog hu ua "pom spectrum", tab sis nws tsuas yog ib feem me me ntawm cov teeb nyob rau hauv electromagnetic spectrum, uas spans energies ntawm xov tooj cua tsis mus rau gamma-rays. Lub spectrum ntawm lub hnub tshwm raws li ib tug nruam spectrum thiab nquag sawv cev raws li qhia hauv qab no.

Hais txog qhov no, cov ntsiab lus twg muaj nyob hauv lub hnub spectrum?

Lub hnub yog feem ntau Hydrogen tab sis Helium, Oxygen, Cov pa roj carbon . Neon. Nitrogen, hlau, magnesium thiab sulfur. Peb tau pom txog 67 lub ntsiab tam sim no nyob rau hauv lub hnub Helium tau pom nyob rau lub hnub ua ntej nws pom nyob rau hauv lub ntiaj teb!

Tsis tas li ntawd, lub hnub puas muaj emission lossis nqus spectrum? Ib hnub qub tso pa tawm los ntawm thermal hluav taws xob, uas yuav kwv yees li sib npaug ntawm lub cev hluav taws xob dub. Txawm li cas los xij ib feem ntawm qhov no spectrum yuav yog nqus tau los ntawm txheej txheej ntawm lub hnub qub no. Yeej muaj tseeb li ntawd nqus kab thiab tso pa tawm cov lus dag coincide, yog li cov frequencies yuav rov tso tawm.

Ua raws li qhov no, vim li cas lub hnub ci yog qhov txuas ntxiv?

Yog li dawb electrons nyob rau hauv lub plasma nruab nrab nyob rau hauv lub lub hnub corona radiate Bremsstrahlung hluav taws xob vim muaj kev sib tsoo thiab cov txiaj ntsig tau txais yog nruam spectrum zoo li rov qab lub cev hluav taws xob. Qhov no kuj muaj tseeb rau tsis tu ncua hluav taws xob ntawm cov khoom kub thiab hlau.

Lub hnub ci wavelength yog dab tsi?

Feem ntau, hnub ci tau tawg ua peb yam tseem ceeb: (1) pom lub teeb, nrog wavelengths nruab nrab ntawm 0.4 thiab 0.8 micrometer, (2) ultraviolet lub teeb, nrog wavelengths luv dua 0.4 micrometer, thiab (3) infrared tawg, nrog wavelengths ntev tshaj 0.8 micrometer.

Pom zoo: