लेन्ज का नियम है - – McqOptions

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1.	लेन्ज का नियम है -
A.	द्रव्यमान संरक्षण का
B.	संवेग संरक्षण का
C.	ऊर्जा संरक्षण का
D.	द्रव्यमान व ऊर्जा संरक्षण का
Answer» D. द्रव्यमान व ऊर्जा संरक्षण का

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