अल्फा किरणें है ? – McqOptions

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1.	अल्फा किरणें है ?
A.	H⁺ आयन
B.	He⁺⁺ आयन
C.	इलेक्ट्रॉन
D.	प्रोट्रॉन
Answer» C. इलेक्ट्रॉन

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