Thermodynamic and Statistical PhysicsDiffusion Equation (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 1  2 of 2
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Question number: 1
» Thermodynamic and Statistical Physics » Diffusion Equation
Appeared in Year: 2013
Question
Consider the following ratio of the partial decay widest,
If the effects pf electromagnetic and weak interaction are neglected, then and are respectively is given as, (Dec 2013)
Choices
Choice (4)  Response  

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c. 


d. 


Question number: 2
» Thermodynamic and Statistical Physics » Diffusion Equation
Appeared in Year: 2011
Question
Consider two independently diffusing noninteracting in 3 – dimensional space, both placed at the origin at time . These particles have different diffusion constants and . The quantity where and are the positions of the particles at time , behaves as – (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

