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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
- The radius of the convex surface of a plano-convex lens is 20 cm and the refractive index
- If longitudinal strain for a wire is 0.03 and its poisson’s ratio is 0.5
- Two beams of light having intensities I and 4I interfere to produce a fringe pattern
- Dimensions formula for surface tension is
- A photon of energy 10.2 eV collide inelastically with hydrogen atom in ground state
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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