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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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Topics: Radioactivity
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A magnetic field of 1600 A/m produces a magnetic flux of 2.4 x 10⁻⁵ Wb
- An aicraft executes a horizontal loop of radius 1 km with a speed of 900 kmh⁻¹
- The maximum kinetic energy of emitted electrons in a photoelectric effect
- A solid cylinder of mass 50kg and radius 0.5 m is, free to rotate about the horizontal axis
- Two sources P and Q produce notes of frequency 660 Hz each.
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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