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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 surface tension of soap solution is 0.03 N/m. The work done in blowing to form a soap
- An electron in a circular orbit of radius 0.05 nm performs 10¹⁶ rev/s. The magnetic
- The fossil bone has a ¹⁴C:¹²C ratio, which is [1/16] of that in a living animal
- Young’s modulus of perfectly rigid body material is
- If two vectors are equal in magnitude and their resultant is also equal in magnitude
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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