MHT CET 2025 Physics question

PhysicsNucleiMHT CET 2025

Two radioactive materials A and B having decay constant '' and '' respectively, initially have same number of nuclei. The time taken to have the ratio of number of nuclei of material B to that of A is 'e' is

Answer: (B)

Solution

With equal initial number , and . Then . Setting this equal to gives $6λ

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Question ID VK-101860