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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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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Work of 3.0×10⁻⁴ joule is required to be done in increasing the size of a soap film
- Two identical circular coils A and B are kept on a horizontal tube
- An open pipe resonates with a tuning fork of frequency 500 Hz. It is observed
- The first line in Lyman series has wavelength λ. The wavelength
- An electric dipole placed in a non-uniform electric field experiences
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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