JEE Main 2018 Physics question
A solution containing active cobalt Co having activity of 0.8 µCi and decay constant is injected in an animal's body. If 1 cm³ of blood is drawn from the animal's body after 10 hrs of injection, the activity found was 300 decays per minute. What is the volume of blood that is flowing in the body? (1 Ci = decay per second and at t = 10 hrs )
Answer: (D)