The "Third-Life," the Time It Takes Nuclei to Decay Until $\beta$

question 38

Multiple Choice

The "third-life," the time it takes nuclei to decay until one-third of the original amount remains,expressed in terms of the decay constant $\beta$ ,is

• A)(ln 2)/3\(\lambda\)
• B)(ln 3)/\(\lambda\)
• C)(ln 0.333)/\(\lambda\)
• D)3(ln 2)/\(\lambda\)
• E)\(\lambda\)/3

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