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If 20% of a radiactive element decays in 10 days, then amount of original material left after 30 days is (approx)
Options
(a) 78%
(b) 62%
(c) 51%
(d) 48%
Correct Answer:
51%
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 system consists of three masses m₁, m₂ and m₃ connected by a string passing
- If ∆Q>0 when heat flows into a system, ∆W>0 when work is done on the system
- If seperation between screen and source is increased by 2%. What would be the effect
- Photons of 5.5 eV energy fall on the surface of the metal emitting photoelectrons
- The equiconvex lens has focal length f. If it is cut perpendicular to the principal
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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