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[" In Rutherford scattering experiment,the number of "alpha" -particles "],[" scattered at "60^(@)" is "5times10^(6)" .The number of "alpha" -particles scattered at "],[120^(@)" will be - "],[" (1) "15times10^(6)],[" (2) "(3)/(5)times10^(6)],[" (3) "(5)/(9)times10^(6)],[" (4) none of these "]

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