A human body required 0.01 m activity of radioactive substance after 24 hours .Half li of radioactive substance is 6 hours .Then injection of maximum activity of radioactive substance that can be injected is :

Question

a). 0.08
b). 0.04
c). 0.16
d). 0.32

Answer 1

six hours is four halflives.
.1=(1/2)^4 * original=original/16
solve for original