GATE (Graduate Aptitude Test in Engineering) Physics: Questions 21  25 of 659
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Question number: 21
» Classical Mechanics » Relativistic Kinematics
Appeared in Year: 2014
Write in Short
If the half – life of an elementary particle moving with speed in the laboratory frame is , then the proper half – life is ________.
Question number: 22
» Mathematical Physics » Elements of Complex Analysis » Residue Theorem and Applications
Appeared in Year: 2014
Question
The value of the integral Where C is the circle , is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 23
» Mathematical Physics » Elements of Complex Analysis » Residue Theorem and Applications
Appeared in Year: 2015
Question
Consider a complex function . Which one of the following statements is correct?
Choices
Choice (4)  Response  

a.  has infinite number of second order poles 

b.  has a second order pole at 

c.  has all simple poles 

d.  has simple poles at and 

Question number: 24
» Thermodynamics and Statistical Physics » Probability Ensembles
Appeared in Year: 2014
Question
Consider a system of 3 fermions, which can occupy any of the 4 available energy states with equal probability. The entropy of the system is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 25
» Electronics » Active Filters and Oscillators
Appeared in Year: 2014
Question
A low pass filter is formed by a resistance R and a capacitance C. At the cut – off angular frequency , the voltage gain and the phase of the output voltage relative to the input voltage respectively, are –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

