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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
- Copper has face centered cubic (fcc) lattice with interatomic spacing equal to 2.54Å.
- Two thin lenses of focal lengths f₁ and f₂ are in contact and coaxial.
- In photoelectric effect, the photoelectric current
- A paramagnetic sample shows a net magnetisation of 0.8 Am⁻¹, when placed
- When a piece of metal is illuminated by a monochromatic light of wavelength λ,
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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