GATE (Graduate Aptitude Test in Engineering) Physics: Questions 87  90 of 659
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Question number: 87
» Electronics » Bipolar Junction Transistors
Appeared in Year: 2015
Write in Short
In the simple current source shown in the figure, and are identical transistors with current gain and .
The current is ________ (upto two decimal places)
Question number: 88
» Mathematical Physics » Fourier Analysis
Appeared in Year: 2015
Question
The Heaviside function is defined as,
And its Fourier transform is given by . The Fourier transform of, is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  0 

Question number: 89
» Classical Mechanics » Lagrange's and Hamilton's Formalisms
Appeared in Year: 2014
Question
The Hamilton’s canonical equations of motion in terms of Poisson Brackets are –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 90
» Quantum Mechanics » One, Two and ThreeDimensional Potential Problems
Appeared in Year: 2014
Question
The ground state and the first excited state wave function of a one dimensional infinite potential well are and , respectively. When two spin – up electrons are placed in this potential, which one of the following with and denoting the position of the two electrons, correctly represents the space part of the ground state wave function of the system?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

