CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 72  75 of 463
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Question number: 72
» Classical Mechanics » Periodic Motion » Small Oscillations
Appeared in Year: 2011
Question
A point particle of mass carrying an electric charge is attached to a spring of stiffness constant. A constant electric field E along the direction of the spring is switched on for a time interval T. Neglecting radiation loss, the amplitude of oscillation after the field is switched off is: (December)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 73
» Mathematical Methods of Physics » Vector Algebra and Vector Calculus
Appeared in Year: 2012
Question
A vector perpendicular to any vector that lies on the plane defined by , is (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 74
» Mathematical Methods of Physics » Binomial, Poisson and Normal Distributions
Appeared in Year: 2012
Question
The radioactive decay of a certain material satisfied Poisson statistics with a mean rate of per second, what should be the minimum duration of counting (in seconds) so that relative error is less than 1%? (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 75
» Mathematical Methods of Physics » Elements of Complex Analysis
Appeared in Year: 2012
Question
Let be the real part of an analytic function of the complex variable, the imaginary part of is – (June)
Choices
Choice (4)  Response  

a. 


b. 


c.  y 

d. 

