लालटेन

lalaten shabd aangrezi ke lॅntarn shabd ka apabhransh hai.
jis prakar anek khoj yuddh mean sena ki avashyakata ke lie huee usi tarah lalaten bhi un khojoan mean se ek hai. isalie mukhy roop se lalaten ka rang hara hota hai.
kerosin, jise mitti ka tel ya dakshin bharat mean ghasalet bhi kahate hai, hi isake avishkar ka karan bana.
sena ko rat mean raushani ke lie ek aise upakaran ki avashyakata thi jisaki ag tej hava aur barish mean bhi na bujhe.
lalaten bharat mean ghar-ghar mean paye jane vala ek anivary prakash upakaran ban gaya jo aj bhi gramin kshetroan mean paya jata hai.
lalaten par kahavatean mashahur hai-
- isaki to lalaten bujh gayi
- aankhean hai ya lalaten
sajavati lalaten (kandil) bhi anek roopoan mean maujood haian. kuchh imaratoan se latakane ke lie hai, kagaz lalaten duniya bhar mean chalan mean hai visheshakar japan aur chin mean inaka upayog bahut hota hai.
lalaten ko parivahan ke lie bhi istemal kiya jata hai. relaga di ke signal dene mean isaki mukhy bhoomika hai.
kerosin lalaten ke kuchh khatare bhi haian. jvalanashil eeandhan vishakt gaisoan ka utsarjan lalaten ka mukhy durgun hai. karban monoaauksaid vishaktata jivan aur paryavaran ke lie atyant hanikarak hai.
kuchh lalaten baitari sanchalit hoti haian. ve kerosin lalaten ki tulana mean asani se upayog mean ane vali aur apekshakrit adhik tikaoo haian.

panne ki pragati avastha

adhar

prarambhik

madhyamik

poornata

shodh

tika tippani aur sandarbh

a a i ee u oo e ai o au aan k kh g gh n ch chh j jh n t th d dh n t th d dh n p ph b bh m y r l v sh sh s h ksh tr jn rri rri aau shr aah