Q58 / 68 · NEST (NISER) 2022 (Session 1) · Physics

A detector records 200 events from the decay of a radioactive sample in the first 10 s. It records 74 events in the next 10 s . The half life of the sample is

A
10 s
B
9 s
Correct answer
C
7 s
D
3 s

Hence, the correct answer is option: 'C'.

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