Q. What is the principle of conservation of energy?

ऊर्जा संरक्षण का सिद्धांत क्या है?

A
Energy cannot be created or destroyed, only transformed.
ऊर्जा को न तो बनाया जा सकता है और न ही नष्ट किया जा सकता है, केवल रूपांतरित किया जा सकता है।
B
Energy can be created or destroyed.
ऊर्जा को बनाया या नष्ट किया जा सकता है।
C
Energy is always constant.
ऊर्जा सदैव स्थिर रहती है।
D
Energy is always variable.
ऊर्जा सदैव परिवर्तनशील होती है।

Explanation

According to the law of conservation of energy, the total energy in an isolated system remains constant. It can change from one form to another (e.g., kinetic to potential), but the total remains the same.

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