Rotational Motion (NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics): Questions 46  49 of 125
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Question number: 46
» Rotational Motion » Moment of Inertia
Question
Two spheres each of mass M and radius are connected with a massless rod of length 2R as shown in the figure.
The moment of inertia of the system about an axis passing through the center of one of the spheres and perpendicular to the rod will be
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 47
» Rotational Motion » Radius of Gyration
Question
The moment of inertia of a sphere of mass M and radius R _{2 } about an axis passing through its center is MR. The radius of gyration of the sphere about a parallel axis to the above and tangent to the sphere is,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 48
» Rotational Motion » Values of Moments of Inertia
Question
A cylinder of 800 g and radius 30 cm has moment of inertia (about its natural axis)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 49
» Rotational Motion » Moment of Inertia
Question
The density of a rod AB increases linearly from A to B. Its midpoint is O and its centre of mass is at C. Four axes pass through A, B, O and C all perpendicular to the length of the rod. The moments of inertia of the rod about this axis are I _{A}, I _{B}, I _{O} and I _{C} respectively then:
(1) (2)
(3) (4)
Select the correct answers and mark it according to the following codes:
Choices
Choice (4)  Response  

a.  2 and 4 are correct 

b.  1 and 2 are correct 

c.  1,2 and 3 are correct 

d.  1 and 3 are correct 

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