Answers 3262 CR Physics B 2526 RadioactivityQuestion 5

5

QuizMultiple Choice

Radioactivity

Question 5 • 3262 CR Physics B 25/26

The half-life of cobalt-60 is 5 years. How old is a sample of cobalt-60 if only one-eighth of the original sample is still cobalt-60?

Answer

A

5 years

B

10 years

C

15 years

D

20 years

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