CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 359  362 of 463
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Question number: 359
» Electronics and Experimental Methods » Operational Amplifiers
Appeared in Year: 2011
Question
A time varying signal is fed to an Op – Amp circuit with output signal as shown
The circuit implements a (June)
Choices
Choice (4)  Response  

a.  Low pass filter with cutoff frequency 16 Hz 

b.  Low pass filter with cutoff frequency 100 Hz 

c.  High pass filter with cutoff frequency 16 Hz 

d.  High pass filter with cutoff frequency 100 Hz 

Question number: 360
» Thermodynamic and Statistical Physics » Diffusion Equation
Appeared in Year: 2011
Question
Consider two independently diffusing noninteracting in 3 – dimensional space, both placed at the origin at time . These particles have different diffusion constants and . The quantity where and are the positions of the particles at time , behaves as – (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 361
» Mathematical Methods of Physics » Poles, Residues & Evaluation of Integrals
Appeared in Year: 2011
Question
The value of the real integral is – (December)
Choices
Choice (4)  Response  

a. 


b. 


c.  0 

d. 


Question number: 362
» Quantum Mechanics » Variational Method
Appeared in Year: 2011
Question
If an electron is in the ground state of the hydrogen atom, the probability that its distance from the proton is more than one Bohr radius is approximately, (June)
Choices
Choice (4)  Response  

a.  0.48 

b.  0.68 

c.  0.28 

d.  0.91 
