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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 carnot engine working between 300 K and 600 K has a work output of 800J per cycle.
- In old age arteries carrying blood in the human body become narrow resulting
- An ideal coil of 10 H is connected in series with a resistance of 5Ω and a battery
- The angular momentum of an electron is J. The magnitude of the magnetic moment
- The velocity of sound is V, in air. If the density of air is increased to four times
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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