NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics: Questions 2001  2005 of 2320
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Question number: 2001
» Gravitation » Universal Law of Gravitation
Question
Two concentric shells of uniform density having masses M _{1} and M _{2} are situated as shown in the figure. The force on the particle of mass m when it is located at r = b is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 2002
» Rotational Motion » Values of Moments of Inertia
Question
A constant torque of 31.4 Nm is exerted on a pivoted wheel. If angular acceleration of wheel is 4π rad/sec ^{2}, then the moment of inertia of the wheel is
Choices
Choice (4)  Response  

a.  2.5 kgm ^{2}  
b.  5.5 kgm ^{2}  
c.  1.5 kgm ^{2}  
d.  4.5 kgm ^{2} 
Question number: 2003
» Rotational Motion » Moment of Inertia
Question
A disc is of mass M and radius R. The moment of inertia of it about an axis tangential to its edge and in polarize of the disc or parallel to its diameter is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 2004
» Gravitation » Universal Law of Gravitation
Question
Four particles, each of mass m, are placed at the corners of square and moving along a circle of radius r under the influence of mutual gravitational attraction. The speed of each particle will be –
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 2005
» Rotational Motion » Radius of Gyration
Question
The radius of gyration of a disc of mass 50 g and radius 2.5 cm, about an axis passing through its center of gravity and perpendicular to the plane is
Choices
Choice (4)  Response  

a.  1.76 cm  
b.  3.54 cm  
c.  0.52 cm  
d.  6.54 cm 