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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 solid body rotates about a stationary axis, so that its angular velocity
- A plumb line is suspended form a ceiling of a car moving with horizontal acceleration
- A short linear object of length L lies on the axis of a spherical mirror of focal
- A 1 µA beam of protons with a cross-sectional area of 0.5 sq.mm is moving with a velocity
- The depth at which the effective value of acceleration due to gravity is g/4
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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