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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
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Topics: Radioactivity
(83)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A circular disc of radius R and thickness R/6 has moment of inertia I about an axis
- An air core solenoid has 1000 turns and is one meter long. Its cross sectional area
- The ratio of longest wavelength corresponding to Lyman and Blamer series
- A ball rolls off the top of stair way with a horizontal velocity of magnitude 1.8 m/s
- Consider a two particle system with particle having masses m₁ and m₂. If the first
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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