| ⇦ | 
| ⇨ |
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: - In an AC circuit the potential differences across an inductance and resistance joined
- A current is flowing through resistance. A potential difference of 120 V
- A piece of marble is projected from the earth’s surface with velocity of 50 m/s
- The apparent weight of the body of mass 10 kg when it is travelling upwards with
- The current in the coil of inductance 5H decreases at the rate of 2 A/s
Topics: Radioactivity
(83)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In an AC circuit the potential differences across an inductance and resistance joined
- A current is flowing through resistance. A potential difference of 120 V
- A piece of marble is projected from the earth’s surface with velocity of 50 m/s
- The apparent weight of the body of mass 10 kg when it is travelling upwards with
- The current in the coil of inductance 5H decreases at the rate of 2 A/s
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply