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The half life of radium is 1620 yr and its atomic weight is 226 kg per kilo mol. The number of atoms that will dacay from its 1g sample per second will be (take, Avogadro’s number, Nᴀ=6.023×10²³ atom/kilo mol)
Options
(a) 3.61×10¹⁰
(b) 31.1×10¹⁵
(c) 3.6×10¹²
(d) 3.11×10¹⁵
Correct Answer:
3.61×10¹⁰
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
- A capacitor of 2.5 μF is charged through a resistor of 4 MΩ. In how much time
- The minimum number of NAND gates used to construct an OR gate is
- Photons with energy 5eV are incident on a cathode C in a photoelectric cell.
- A source of sound S emitting waves of frequency 100 Hz and an observer
- When 4 A current flows for 2 min in an electroplating experiment,
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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