Moderate

The activity of a certain nuclide is governed by the relation ∆𝑁/∆𝑡= −𝜆𝑁 where 𝜆 = 2.4 × 10−8𝑠−1. What is the half-life of the nuclide?

Correct answer: A. 2.9 x 10^7𝑠

A. 2.9 x 10^7𝑠
B. 1.3 x 10^7𝑠
C. 1.2 × 10−8 𝑠
D. 3.4 × 10−8𝑠

Explanation

Using the following formulaT1/2= 0.693/decay constant

Last updated 2 September 2026

About Nuclear Physics

Atomic nuclei contain protons and neutrons, with nuclear size, mass defect and binding energy describing their stability. The work covers alpha, beta and gamma decay, decay equations, half-life and decay rate, along with radiation safety and medical applications such as imaging, radiotherapy and tracers.

Practise Nuclear Physics

1,254 free Nuclear Physics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Start a free Nuclear Physics test All Nuclear Physics MCQs

Exams that ask Physics questions like this

Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

NET Physics60 MCQs NUMS Physics40 MCQs AKU Physics36 MCQs DUHS Physics36 MCQs ETEA MDCAT Physics36 MCQs KMU Physics36 MCQs MDCAT Physics36 MCQs ECAT Physics30 MCQs ETEA Engineering Admission Test Physics30 MCQs GIKI Physics30 MCQs NED Physics30 MCQs PIEAS Physics30 MCQs PMD Physics25 MCQs

The activity of a certain nuclide is governed by the relation ∆𝑁/∆𝑡= −𝜆𝑁 where 𝜆 = 2.4 × 10−8𝑠−1. What is the half-life of the nuclide?

About Nuclear Physics

Practise Nuclear Physics

Exams that ask Physics questions like this

Related questions