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Question

$α$ $β$ এবং $γ$ কণাগুলোর চার্জ যথাক্রমে – ( The charges of $α$ $β$ and $γ$ particles are, respectively)

-2, +1 and 0

+1, -1 and 0

-1, +1 and 0

+2, -1 and 0

ANS : 4

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