railway RRB Group D Mock Test Series 2024-25 General Science Physics Laws and Principles

प्रसिद्ध समीकरण E = mc2 ______ के द्वारा दी गई थी।

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नील्स बोह्र
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रदरफोर्ड
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जे जे थॉमसन
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आइंस्टाइन
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