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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
- The electirc field in a certain region is acting radially outward and is given by E=Ar.
- The ionisation potential of hydrogen-atom is -13.6 eV. An electron in the groundstate
- The frequency of an alternating voltage is 50 cycles per second and its amplitude
- A particle free to move along X-axis has potential energy given as U(X) =k(1-e⁻ˣ²)
- Which one of the following statements is true, if half-life of a radioactive substance
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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