KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SBSX (Class 12 & 1st Year B.Sc.) Physics: Questions 121  124 of 268
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Question number: 121
» Rotational Motion » Moment of Inertia
Appeared in Year: 2015
Question
The moments of inertia of a non – uniform circular disc (of mass M and radius R) about four mutually perpendicular tangents AB, BC, CD, DA are I_{1}, I_{2}, I_{3} and I_{4}, respectively (the square ABCD circumscribes the circle). The distance of the centre of mass of the disc from its geometrical centre is given by,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 122
» Laws of Motion » Equilibrium of Concurrent Forces
Appeared in Year: 2015
Question
Two blocks of masses 5m and 4m in contact on a smooth table. A force P is first applied horizontally on block of mass 5 m and then on 4m. The contact forces between the two blocks in the two cases in the ratio
Choices
Choice (4)  Response  

a.  3: 2 

b.  5: 3 

c.  2: 3 

d.  1: 2 

Question number: 123
» Rotational Motion » Moment of Inertia
Question
A homogeneous sphere of mass M and radius R has moment of inertia I about its diameter. A concentric sphere of radius is carved out from the sphere. What is the moment of inertia of the remaining part about the diameter?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 124
» Electrostatics » Electric Potential
Appeared in Year: 2013
Question
The figure below shows a circuit and its input voltage as function of time t.
Assuming the diodes to be ideal, which of the following graphs depicts the output voltage V_{0} as function of time t?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
