AP Physics 2
15.7 Fission, Fusion, and Nuclear Decay
A freshly prepared sample of a radioactive isotope initially contains undecayed nuclei and has an initial activity of \(A_0 = 3.2 \times 10^8 \text{ Bq}\). The sample is allowed to decay undisturbed for a time interval equal to five half-lives (\(t = 5t_{1/2}\)). What fraction of the initial radioactive nuclei remains undecayed, and what is the activity of the sample at the end of this time interval?
Similar Questions
Tools for a 5
AP aligned mock tests to help you get a 5.
With grading, adaptive explanations, and more.
Find a Quiz
Find, solve, and grade every AP FRQ ever.
Find an FRQ
Stuck on AP Physics 2? Get unstuck with an AP specialist.1 to 1 tutors who know the exam inside out. Understand weeks of material in a single session.Find a Tutor
Learn AP Physics from scratch, quickly. This is the only course you'll need for the year.
A self-paced course with everything you need to get a 5. Trusted by over 15,000 students and 200+ schools. Learn fast, or we'll refund your purchase, backed by our 100% satisfaction guarantee.
Explore the Course