Start Free Mock LoginAlready registered? Login here

Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsRadioactivityMedium2 minQB

PhysicsMediumsingle choice

An unstable nucleus decays in three different modes, each mode having a different half life. $T_{1}$ , $T_{2}, T_{3} (T_{1} ≫ T_{2} ≫ T_{3})$ . The overall half life of a sample will be given by

Options:

Answer:

Solution:

$λ_{total} = λ_{1} + λ_{2} + λ_{3}$

Since $T_{3} ≪ T_{2} ≪ T_{1}$ , $λ_{3}$ dominates the sum, so

$T \approx T_{3}$

Hence option (B).

Stream:JEESubject:PhysicsTopic:Modern PhysicsSubtopic:Radioactivity

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...