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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
- The lowest frequency of light that will cause the emission of photoelectrons
- The current in the windings of a toroid is 2.0 A. There are 400 turns
- A light emitting diode(LED) has a voltage drop of 2 volt across it
- Two masses of 9 g and 6 g are connected with a string which is passing over a frictionless
- If the length of a stretched string is shortened by 4% and the tension is increased
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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