| ⇦ | 
| ⇨ |
A radioactive substance decays to 1/16th of its initial activity in 40 days. The half-life of the radioactive substance expressed in days is
Options
(a) 2.5
(b) 5
(c) 10
(d) 20
Correct Answer:
10
Explanation:
N/N₀ = (1/2)ⁿ
(1/16) = (1/2)ⁿ
n = 4
Half life = t / n = 40 / 4 = 10 day
Related Questions: - The ratio of the nuclear radii of elements with mass numbers 216 and 125 is
- A stone falls freely under gravity.It covers distances h₁,h₂ and h₃
- The kirchoff’s first law (∑i=0) and second law (∑iR=∑E), where the symbols
- A potentiometer circuit has been set up for finding the internal resistance of a given
- In a franhofer diffraction experiment at a single slit using a light of wavelength
Topics: Radioactivity
(83)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The ratio of the nuclear radii of elements with mass numbers 216 and 125 is
- A stone falls freely under gravity.It covers distances h₁,h₂ and h₃
- The kirchoff’s first law (∑i=0) and second law (∑iR=∑E), where the symbols
- A potentiometer circuit has been set up for finding the internal resistance of a given
- In a franhofer diffraction experiment at a single slit using a light of wavelength
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