JEE PHYSICS MCQ: NUCLEI

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Application +4 | -1

Half – lives of two radioactive elements

A

and

B

are 20 min and 40 min, respectively. Initially, the samples have equal number of nuclei. After 80 min, the ratio of decayed numbers of

A

and

B

nuclei will be

View answer and explanation

Correct option: D

0.211111111

Option D (5:04) is correct because it represents the ratio of decayed nuclei after considering the different half-lives.

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