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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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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Dispersion of light is caused due to
- Which two of the following five physical parameters have the same dimensions?
- A particle moves in xy plane according to the equation x = 4t² + 5t + 16 and y = 5t
- The half life of a radioactive isotope ‘X’ is 20 years. It decays to another element Y
- A wire of resistance 4 ohm is stretched to twice its original length.
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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