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Q.

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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a

N1/N2

b

N1(In2)

c

N2/N1

d

N2(In2)

answer is B.

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Detailed Solution

-dN1dt=λN1

N2=λN1

λ=N2N1

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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)