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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
- Two identical long conducting wires AOB and COD are placed at right angle
- If a steel wire of length l and magnetic moment M is bent into a semicircular arc,
- A neutron moving with velocity v collides with a stationary particle
- The quantity having the same units in all systems of unit is
- An insulated container of gas has two champers seperated by an insulating partition.
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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