CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 312  314 of 463
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Question number: 312
» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications
Appeared in Year: 2012
Question
Charges Q, Q and 2Q are placed on the vertices of an equilateral triangle ABC of sides of length , as shown in the figure
The dipole moment of this configuration of charges, irrespective of the choice of origin, is – (June)
Choices
Choice (4)  Response  

a. 


b.  0 

c. 


d. 


Question number: 313
» Quantum Mechanics » WaveFunction in Coordinate Representations
Appeared in Year: 2012
Question
The energy in the ground state and first excited state of a particle of mass in a potential are and , respectively, (in units in which ). If the corresponding wave functions are related by , then the ground state eigen function is – (December)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 314
» Electromagnetic Theory » Scalar and Vector Potentials
Appeared in Year: 2012
Question
Consider an infinite conducting sheet in the XY – plane with a time dependent current density , where K is constant. The vector potential at is given by . The magnetic field is –
(December)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

