JEE PHYSICS MCQ: NUCLEI

1 Medium

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Application +4 | -1

There are two radioactive substances

A

and

B

. Decay constant of

B

is two times that of

A

. Initially, both have equal number of nuclei. After

n

half lives of

A

, rate of disintegration of both are equal. The value of

n

View answer and explanation

Correct option: C

\mathrm{1}

Option C (1) is correct because after one half-life of A, the rate of disintegration of A is halved, and after two half-lives of B (which is equivalent to one half-life of A), the rate of disintegration of B is also halved, making them equal.

JEE PHYSICS MCQ: NUCLEI

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