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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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- A block of mass m1 rests on a horizontal table. A light string connected
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Topics: Radioactivity
(83)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In the half wave rectifier circuit operating from 50 Hz mains frequency,
- A block of mass m1 rests on a horizontal table. A light string connected
- An alternating electric field, of frequency v, is applied across the dees (radius = R)
- If R is the radius of earth, the height at which the weight of a body 1/4 of its weight
- A body initially at rest is moving with uniform acceleration a m/s²
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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