अंतरतारकीय गैस

aantaratarakiy gais taroan ke bich rikt sthanoan mean upasthit rahati hai. yah gais dhoolakanoan ke sath paee jati hai. gais ke anu taroan ke prakash se vishesh rangoan ko sokh lete haian aur is prakar unake karan taroan ke varnapatoan mean kali dhariyaan ban jati haian. aisi kali dhariyaan samanyat: tare ke niji prakash se bhi ban sakati haian.

• kali rekhaean aantaratarakiy dhooli se hi bani hoti haian. isaka praman un yugmataroan se milata hai, jo ek-doosare ke charoan or nachate rahate haian. in taroan mean se jab ek hamari or ata rahata hai, tab doosara hamase door jata rahata hai. parinam yah hota hai ki 'd aaupalar niyam' ke anusar varnapat mean ek tare se aee prakash ki kali rekhaean kuchh dahine hat jati haian. is prakar doosare tare ke prakash se bani rekhaean dohari ho jati haian, parantu aantaratarakiy gaisoan se utpann kali rekhaean ikahari hoti haian; isalie ve tikshn rah jati haian.
• aantaratarakiy gais mean kailshiyam, potaishiyam, sodiyam, taiteniyam aur lohe ke astitv ka pata inhian tikshn-rekhaoan ke adhar par chala hai.
• in maulik dhatu tatvoan ke atirikt aauksijan aur karban, haidrojan tatha naitrojan ke vishesh yaugikoan ka bhi pata laga hai.
• vaijnanikoan ka anuman hai ki aantaratarakiy gais mean pray: ve sabhi tattv hoange, jo prithvi ya soory mean haian.

panne ki pragati avastha

adhar

prarambhik

madhyamik

poornata

shodh

sanbandhit lekh

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