GATE 2022 Biomedical Engineering: When Radionuclide Radioactivity is Equal?

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Biomedical Engineering > GATE 2022 > Radioactivity

Consider two radionuclides P and Q. Suppose the half-life of P (t_1/2^P) is four times that of Q (t_1/2^Q). At time t=0, there are N₀ atoms of both radionuclides. When will the radioactivity of the two radionuclides be equal?

A

t = t_1/2^P

B

t = 0.66t_1/2^P

C

t = 0.75t_1/2^P

D

t = 1.5t_1/2^P

Explanation

Correct : b

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