Which Graph Below Describes the Decay of Two Radioactive Nuclides

question 43

Multiple Choice

Which graph below describes the decay of two radioactive nuclides, P and Q, when the half-life of Q is shorter than the half-life of P? In these graphs ln[N(0) /N(t) ] is plotted on the y-axis, with time (t) on the x-axis. N(0) = number of radioactive nuclides present at time = 0, and N(t) = number present at time = t.

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Definitions:

Annuity

A fiscal tool that disburses a set sequence of payments to a person, frequently serving as a financial income for retirees.

Equal Payments

Regular payments of the same amount, typically used in the context of loans or amortization schedules.

Present Value Factor

A multiplier used in calculating the present value of a future amount of money or stream of cash flows given a specific discount rate.

Compounded Semiannually

A method of calculating interest where the interest is added to the principal amount twice a year, leading to interest earning interest over time.