NEET UG PHYSICS MCQ: NUCLEI

1 Hard

1 of 1

Application +4 | -1

When a sample of atoms is irradiated by neutrons, radioactive atoms are produced at a constant rate

R

, which decay with decay constant

\lambda

. The number of radioactive atoms accumulated after an irradiation time

t

is given by

View answer and explanation

Correct option: C

N(t)=\frac{R}{\lambda}\left(1-e^{-\lambda t}\right)

Option C (

N(t)=\frac{R}{\lambda}\left(1-e^{-\lambda t}\right)

) is correct because it represents the balance between the production and decay of radioactive atoms over time.

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