Rotational Motion (NEET Physics): Questions 101  104 of 123
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Question number: 101
» Rotational Motion » Moment of Inertia
Question
The moment of inertia of a circular ring about an axis passing through its center and normal to its plane is 200 gm ⨯ cm ^{2}. Then moment of inertia about its diameter is,
Choices
Choice (4)  Response  

a.  400 gm ⨯ cm ^{2} 

b.  100 gm ⨯ cm ^{2} 

c.  200 gm ⨯ cm ^{2} 

d.  300 gm ⨯ cm ^{2} 

Question number: 102
» Rotational Motion » Rotational Kinetic Energy
Question
A sphere is rolling without slipping on a horizontal plane. The ratio of its rotational kinetic energy and translation kinetic energy is,
Choices
Choice (4)  Response  

a.  2: 9 

b.  2: 3 

c.  2: 5 

d.  2: 7 

Question number: 103
» Rotational Motion » Moment of Inertia
Question
From a circular disc of radius R and mass 9 M, a small disc of radius is removed from the disc. The moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc and passing through O is,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 104
» Rotational Motion » Concepts of Rotational Motion
Question
One solid sphere and a disc of same radius are falling along an inclined plane without slip. One reaches earlier than the other due to,
(1) Different size
(2) Different radius of gyration
(3) Different moment of inertia
(4) Different friction
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 and 3 are correct 

d.  1, 2 and 3 are correct 
