Quantum Mechanics (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 40  42 of 80
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Question number: 40
» Quantum Mechanics » SpinStatistics Connection
Appeared in Year: 2013
Question
Consider three particles A, B and C each with an attribute S that can take two values Let and at a given instant. In the next instant, each S value can change to with probability . The probability that remains unchanged is – (June – 2013)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 41
» Quantum Mechanics » Elementary Theory of Scattering » Phase Shifts
Appeared in Year: 2014
Question
A double slit interference experiment uses a laser emitting light of two adjacent frequencies and . The minimum path difference between the interfering beams for which the interference pattern disappears is – (June 2014)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 42
» Quantum Mechanics » Elementary Theory of Scattering » Born Approximation
Appeared in Year: 2013
Question
In the Born approximation, the scattering amplitude for the Yukawa potential,
Is given by, (in the following ) (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

