A patient is injected with a medical tracer that has an initial activity of 2.5MBq. The tracer has a half-life of 6.0h. Each decay releases 0.35MeV of energy which is fully absorbed by the patient.
(i) Calculate the total number of disintegrations that occur in the first 30min after injection.
(ii) Determine the total energy absorbed (in joule) in this interval.
(iii) Hence find the average power deposited in the patient’s body during these 30min.