Quantum MechanicsElementary Theory of Scattering (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 4  6 of 6
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Question number: 4
» Quantum Mechanics » Elementary Theory of Scattering » Born Approximation
Appeared in Year: 2014
Question
An electron is in the ground state of a hydrogen atom. The probability that it is within the Bohr radius is approximately equal to – (June – 2014)
Choices
Choice (4)  Response  

a.  0.32 

b.  0.90 

c.  0.60 

d.  0.16 

Question number: 5
» Quantum Mechanics » Elementary Theory of Scattering » Born Approximation
Appeared in Year: 2012
Question
A free particle describe by a plane wave and moving in the positive z – direction undergoes scattering by a potential,
If is changed to , keeping R fixed, then the differential scattering cross section, in the Born approximation, (June)
Choices
Choice (4)  Response  

a.  Increases to twice the original value 

b.  Decreases to one fourth the original value 

c.  Increases to four times the original value 

d.  Decreases to half the original value 

Question number: 6
» Quantum Mechanics » Elementary Theory of Scattering » Born Approximation
Appeared in Year: 2016
Question
A particle is scattered by a central potential , where and are positive constants. If the momentum transfer is such that , the scattering cross – section in the Born approximation, as , depends on as:
[You may use: ] (December)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

