CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 17  20 of 463
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Question number: 17
» Quantum Mechanics » Eigenvalue Problems
Appeared in Year: 2013
Question
The un – normalized wave function of a particle in a spherically symmetric potential is given by,
Where, is a function of the radial variable r. The eigenvalue of the operator (namely the square of the orbital angular momentum) is – (June)
Choices
Choice (4)  Response  

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Question number: 18
» Quantum Mechanics » Motion in Central Potential » Angular Momentum Algebra
Appeared in Year: 2013
Question
A particle moves in a potential. Which component (s) of the angular momentum is/are constant (s) of motion? (December)
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Choice (4)  Response  

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d.  Question does not provide sufficient data or is vague 

Question number: 19
» Classical Mechanics » Special Theory of Relativity » Relativistic Kinematics
Appeared in Year: 2013
Question
The area of a disc in its rest frame S is equal to 1 (in some units). The disc will appear distorted to an observer O moving with a speed u with respect to S along the plane of the disc. The area of the disc measured in the rest frame of the observer O is (c is the speed of light in vacuum) (June)
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Question number: 20
» Electromagnetic Theory » Scalar and Vector Potentials
Appeared in Year: 2013
Question
If the electric and magnetic field are unchanged when the vector potential changes (in suitable units) according to, where then the scalar potential must simultaneously change to – (June)
Choices
Choice (4)  Response  

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b. 


c. 


d. 

