Nuclear Physics And Radioactivity Question 261

Question: The half-life period of radium is 1600 years. Its average life time will be [MP PET/PMT 1988]

Options:

A) 3200 years

B) 4800 years

C) 2319 years

D) 4217 years

Show Answer

Answer:

Correct Answer: C

Solution:

Average life $ \frac{1}{\lambda }=\frac{1600}{0.693}=2308\approx 2319 $ years.