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N1 atoms of a radioactive element emit N2 beta particles per second. The decay constant of the element is (in s^-1)

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N1 atoms of a radioactive element emit N2 beta particles per second. The decay constant of the element is (in s-1)

(a) N1/N2

(b) N2/N1

(c) N1(In 2)

(d) N2(In 2)

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The correct option is (b) N2/N1.

Explanation:

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