In an experiment the initial number of radioactive nuclei is 3000
PHYSICS · Single correct · A Level · Physics · Nuclear physics · Nuclear physics
Problem
In an experiment the initial number of radioactive nuclei is 3000. It is found that 1000±40 nuclei decayed in the first 1.0 s. For ∣x∣≪1 , ln(1+x)=x up to first power in x . The error Δλ , in the determination of the decay constant λ , in s−1 , is
(1) 0.04
(2) 0.03
(3) 0.02
(4) 0.01