GATE Physics: Questions 81  84 of 323
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Question number: 81
» Electromagnetic Theory » Energy and Momentum of Electromagnetic Waves
Appeared in Year: 2014
Write in Short
The intensity of a laser in free space is . The corresponding amplitude of the electric field of the laser is .
Question number: 82
» Mathematical Physics » Vector Calculus
Appeared in Year: 2014
Write in Short
If the vector potential
satisfies the Coulomb gauge, the value of the constant is ________.
Question number: 83
» Quantum Mechanics » Angular Momentum and Spin
Appeared in Year: 2015
Write in Short
Let the Hamiltonian for two spin particles of equal masses , momenta and and position and be
where and denote the corresponding Pauli matrices, and . If the ground state has net spin zero, then the energy (in ) is ________.
Question number: 84
» Solid State Physics » Elements of Superconductivity » TypeI and TypeII Superconductors
Appeared in Year: 2015
Question
Which one of the following represents the electron occupancy for a superconductor in its normal and superconducting states?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
