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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
- Light of frequency 8×10¹⁵ Hz is incident on a substance of photoelectric work
- An ac voltage is applied to a resistance R and an inductor L in series
- Two point objects of masses 1.5 g and 2.5 g respectively are at a distance of 16 cm
- If force(F),velocity(v) and time(T) are taken as units, then the dimensions of mass are
- In Young’s experiment, the third bright band for light of wavelength 6000Å
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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