Video: Muaj pes tsawg hom teeb muaj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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Tib neeg kuj nug tias, lub teeb sib txawv yog dab tsi?
Lub Electromagnetic Spectrum sab nraud pom tau muab faib ua ntau qhov chaw uas tseem muaj cov npe tshwj xeeb: xov tooj cua tsis, microwaves, infrared, ultraviolet, x-rays thiab gamma rays. Txawm tias muaj ntau lub npe, lawv txhua tus cov qauv ntawm lub teeb.
Tsis tas li ntawd, hom teeb pom kev sib txawv yog dab tsi?
- Hom Teeb. Kev txuag hluav taws xob tau dhau los ua kev txhawj xeeb ntau dua.
- Teeb pom kev hauv tsev.
- Incandescent qhov muag teev:
- Compact Fluorescent Light Bulbs (CFL):
- Lub teeb Emitting Diode (LED):
- Sab nraum zoov teeb pom kev zoo.
- Halogen noob:
- Hlau Halide:
Tib neeg kuj nug, muaj pes tsawg hom LED teeb muaj?
3 Ntau hom LED Teeb uas tuaj yeem hloov tag nrho saib ntawm Lub Chaw Haujlwm. LED teeb yog tam sim no siv nyob txhua qhov chaw vim nws efficiency thiab noj tsawg zog thiab emitting lub zoo meej teeb uas yuav tsum tau. Qhov ntawd txhais tau tias LEDs ua haujlwm rau lub hom phiaj thiab muaj qhov zoo dua li lwm yam teeb.
Dab tsi yog 5 yam khoom ntawm lub teeb?
Qhov tseem ceeb khoom ntawm pom teeb yog kev siv zog, kev nthuav tawm kev taw qhia, zaus lossis wavelength spectrum, thiab polarization, thaum nws ceev hauv lub tshuab nqus tsev, 299, 792, 458 meters ib ob, yog ib qho tseem ceeb ntawm qhov xwm txheej.
Pom zoo:
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tsib Ntxiv mus, muaj pes tsawg hom monomers muaj nyob rau hauv cov hmoov txhuv nplej siab? Nyob ntawd tsuas yog 1. Ib yam li ntawd, qhov sib txawv ntawm nucleic acids yog dab tsi? Ob yam tseem ceeb ntawm nucleic acids yog deoxyribonucleic acid (DNA ) thiab ribonucleic acid (RNA).
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