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The radioactivity of a certain material drops to 1/16 of the initial value in 2 hours. The half-life of this radio nuclide is
Options
(a) 10 min
(b) 20 min
(c) 30 min
(d) 40 min
Correct Answer:
30 min
Explanation:
In 4 × T₁/₂, N = (N₀ / 2) × (1 / 2) × (1 / 2) × (1 / 2)
= N₀ / 16 4 × T₁/₂ = 2 hrs.
⇒ T₁/₂ = 30 min
Related Questions: - During an adiabatic process, the pressure of a gas is found to be proportional
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Topics: Radioactivity
(83)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- During an adiabatic process, the pressure of a gas is found to be proportional
- A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed of 2.00
- The given graph represents V-I characteristic for a semiconductor device
- A solid sphere of mass M, radius R and having moment of inertia about an axis passing
- A potentiometer wire is 100cm long and a constant potential difference is maintained
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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