ऊष्मा ( Heat ) एक प्रकार की ऊर्जा है जिसे कार्य में बदला जा सकता है । इसका प्रत्यक्ष प्रमाण सबसे पहले किसने दिया ? - Heat is a type of energy that can be converted into work. Who first gave direct proof of this? - ushma ( Heat ) Ek Prakar Ki Urja Hai Jise Karya Me Badla Jaa Sakta Hai . Iska Pratyaksh Pramaan Sabse Pehle Kisne Diya ? General Science in hindi, Physics Radarford question answers in hindi pdf Celcius questions in hindi, Know About Devee General Science online test General Science notes in hindi quiz book farenhite
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