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Two radioactive materials A and B have decay constant 137 unit
Question

Two radioactive materials A and B have decay constant 137 units and 1914 units respectively. Directly both have the same number of nuclei. The time (in same system of units), after which the ratio of their remaining nuclei will be 1/e is

A
2

B
3

C
4

D
5

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Two radioactive materials A and B have decay constant 137 units and 1914 units respectively. Directly both have the same number of nuclei. The time (in same system of units), after which the ratio of their remaining nuclei will be 1/e is
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Text SolutionText solutionverified iconVerified

[a] N1N2=e(λ2−λ1)=1e ⇒t=1λ2−λ1=2
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Question Text
Two radioactive materials A and B have decay constant 137 units and 1914 units respectively. Directly both have the same number of nuclei. The time (in same system of units), after which the ratio of their remaining nuclei will be 1/e is
Answer TypeText solution:1
Upvotes150