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A radioactive substance emits n beta particles in the first 2 s and 0.5 n beta particles in the next 2 s. The mean life of the sample is
Options
(a) 4 s
(b) 2 s
(c) 1/(ln 2) s
(d) 2 (ln 2) s
Correct Answer:
1/(ln 2) s
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Radioactivity
(83)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Weight of a body of mass m decreases by 1% when it is raised to height h
- A current I flows along the length of an infinitely long, straight, thin walled pipe.
- Two stones of masses m and 2m are whirled in horizontal circles, the heavier one
- Two bodies A and B have masses 20 Kg and 5 Kg respectively. Each one is acted
- The mass of a ⁷₃ Li nucleus is 0.042 u less than the sum of the masses of all its nucleons
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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