KVPY Stream SBSX (Class 12 & 1st Year BSC) Physics: Questions 50  52 of 250
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Question number: 50
» Laws of Motion » Equilibrium of Concurrent Forces
Appeared in Year: 2012
Question
A particle is acted upon by a force given by where α and β are positive constants. At the point x = 0, the particle is –
Choices
Choice (4)  Response  

a.  In unstable equilibrium  
b.  In stable equilibrium  
c.  In neutral equilibrium  
d.  None of the above 
Question number: 51
» Rotational Motion » Moment of Inertia
Appeared in Year: 2012
Question
Seven identical coins are rigidly arranged on a flat table in the pattern shown below so that each coin touches its neighbors. Each coin is a thin disc of mass m and radius r. Note that the moment of inertia of an individual coin about an axis passing through center and perpendicular to the plane of the coin is .
The moment of inertia of the system of seven coins about an axis that passes through the point P (the centre of the coin positioned directly to the right of the central coin) and perpendicular to the plane of the coins is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 52
» Electromagnetic Induction & Alternating Currents » Induced EMF and Current
Appeared in Year: 2011
Question
In the circuit shown, the switch is closed at time t = 0.
Which of the graphs shown below best represents the voltage across the inductor, as seen on an oscilloscope?
Choices
Choice (4)  Response  

a.  
b.  
c.  
d. 