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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
- The half-life of a radioactive substance is 30 min. The time (in minutes) taken
- A ball is dropped into a well in which the water level is at a depth h below the top
- If an electron and a proton have the same de-Broglie wavelength, then the kinetic
- A spring when stretched by 2mm containing energy 4 J. If it is stretched
- A metal bar of length L and area of cross-section A is clamped between two rigid
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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