ऊर्जा
Revision as of 12:10, 14 September 2010 by फ़ौज़िया ख़ान (talk | contribs)
(aangrezi:Heat) kisi vastu mean kary karane ki kshamata ko us vastu ki oorja kahate haian. oorja ek adish rashi hai. vastu mean jis karan se kary karane ki kshamata a jati hai, use oorja kahate haian. oorja do prakar ki hoti hai- gatij urja evan sthitij oorja.
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tika tippani aur sandarbh