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Two radioactive materials X₁ and X₂ have decay constants 5λ and λ respectively. If initially they have the same number of nuclei, then the ratio of number of nuclei of X₁ to that of X₂ will be 1/e after a time
Options
(a) λ
(b) 1/2 λ
(c) 1/4 λ
(d) e/λ
Correct Answer:
1/4 λ
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
- A galvanometer having resistance of 50 Ω requires a current of 100μA to give full
- A common emitter amplifier gives an output of 3 V for an input of 0.01 V.
- A uniform force of (3i + j) newton acfs on a particle of mass 2kg
- An alpha nucleus of energy 1/2 mv² bombards a heavy nuclear target of charge Ze
- The velocity of a particle at an instant is 10 ms⁻¹.After 3 s its velocity will become
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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