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प्र: 
ऊर्जा के संरक्षण का नियम कहता है कि

  • 1
    energy can neither be created nor destroyed
  • 2
    energy can either be created nor destroyed
  • 3
    energy can neither be created or destroyed
  • 4
    energy can either be created or destroyed
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उत्तर : 1. "energy can neither be created nor destroyed"
व्याख्या :

Answer: A) energy can neither be created nor destroyed Explanation: The law of conservation of energy is a law of science which states that energy can neither be created nor destroyed - only converted from one form of energy to another. In 1842, Julius Robert Mayer discovered the Law of Conservation of Energy.

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