4. What is the half-life of the radioactive isotope with amount A, whose rate of decay in t hours is shown in the graph below? (0,40) (20,15)

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Benelgiac · Answer 1 · 2022-07-17T05:17:00+0000

Answer:The half life is the time taken for the amount of a substance to become half of its original value. If we take the initial value to be 30 on the y-axis, the half of 30 is 15. We check the time at which the substance has reduced to 15 atoms and this is about 40 seconds. The answer is C.

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4. What is the half-life of the radioactive isotope with amount A, whose rate of decay in t hours is shown in the graph below? (0,40) (20,15)

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