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प्रश्न
A body absorbs 1680 J of heat energy. How many calories of heat is absorbed by the body?
एका वाक्यात उत्तर
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उत्तर
Heat energy absorbed by body = Q = 1680 J
We know 1 cal = 4.2 J
→ Q = 1680 J = 1680/4.2 Cal
Q = 400 Cal
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