Taw qhia ntawm spectral absorptive
spectral absorptive hais txog qhov feem pua ntawm lub zog radiant nqus tau los ntawm ib qho khoom ntawm lub nthwv dej. Feem ntau, cov xim spectral absorptive ntawm ib qho khoom yog cuam tshuam txog nthwv dej. Txhua yam khoom siv hauv qhov xwm muaj qib sib txawv ntawm kev nqus, xav txog thiab xa muaj peev xwm mus rau qhov muaj zog hluav taws xob tau npaj rau lawv tus kheej. Tag nrho cov zog npaj sab nraud los ntawm sab nraud mus rau saum npoo ntawm qhov khoom. Ib feem ntawm lub zog tau nqus los ntawm cov khoom tom qab nkag mus rau saum npoo, lwm qhov ntawm lub zog yog xav tau los ntawm qhov khoom, thiab lub zog sib ntxiv nkag mus rau qhov khoom.