Questions
A sample contains 16g of a radioactive material, the half life of which two days. After 32days, the amount of radioactive material left in the sample is
detailed solution
Correct option is A
32days =16×2 days i.e.16 half lives. ∴ amount of sample left =NN0=(12)16×16g =1616×16×16×16g =10016×16×16mg<1mgTalk to our academic expert!
Similar Questions
The half life of a neutron is 800 sec. 108 neutrons at a certain instant are projected from one space station towards another space station, situated 3200 km away, with a velocity 2000 m/s. Their velocity remains constant during the journey. How many neutrons reach the other station?
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