| ⇦ | 
| ⇨ |
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: - The friction of the air causes a vertical retardation equal to 10%
- Magnetism of a magnet is due to
- Three objects coloured black, gray and white can withstand hostile conditions upto 2800⁰C.
- The near point and far point of a person are 40 cm and 250 cm, respectively.
- A body travelling along a straight line traversed one-third of the total distance
Topics: Radioactivity
(83)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The friction of the air causes a vertical retardation equal to 10%
- Magnetism of a magnet is due to
- Three objects coloured black, gray and white can withstand hostile conditions upto 2800⁰C.
- The near point and far point of a person are 40 cm and 250 cm, respectively.
- A body travelling along a straight line traversed one-third of the total distance
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