Starting with a sample of pure ^ 66 Cu, 7/8 of it decays into Zn in 15 min. The corresponding half-life is

MHT CET Physics question

Starting with a sample of pure Cu, 7/8 of it decays into Zn in 15 min. The corresponding half-life is

Answer: (C)

If 7/8 has decayed, 1/8 = is left, so 3 half-lives = 15 min and = 5 min; 15 min would leave

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-084877