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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
- Efficiency of a Carnot engine is 50% when temperature of sink is 500K. In order
- Three capacitors each of capacity 4 μF are to be connected in such a way that the effective
- The photoelectric threshold wevelength for potassium (work function being 2 eV) is
- With the decrease of current in the primary coil from 2 amperes to zero value
- A force F=ai+3j+6k is acting at a point r=2i-6j-12k. The value of α for
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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