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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
- An object is placed 30 cm away from a convex lens of focal length 10 cm and a sharp
- An LCR circuit contains resistance of 100 ohm and a supply of 200 volt at 300 radian
- An automobile moves on a road with a speed of 54 km h⁻¹. The radius of its wheels
- If ∆Q>0 when heat flows into a system, ∆W>0 when work is done on the system
- If a full wave rectifier circuit is operating from 50 Hz mains, the fundamental
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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