Rotational Motion (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 55  59 of 125
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Question number: 55
» Rotational Motion » Radius of Gyration
Question
Four particles each of mass m are placed at the corners of a square of side length L The radius of gyration of the system about an axis perpendicular to the square and passing through its center is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 56
» Rotational Motion » Values of Moments of Inertia
Question
Moment of inertia of a ring of mass M = 3 gm and radius R = 1 cm about an axis passing through its edge and parallel to its natural axis is,
Choices
Choice (4)  Response  

a.  10 gmcm ^{2} 

b.  6 gmcm ^{2} 

c.  100 gmcm ^{2} 

d.  1 gmcm ^{2} 

Question number: 57
» Rotational Motion » Values of Moments of Inertia
Question
A long rod has a mass of 0.10 kg and length of 200 cm. The moment of inertia about an axis passing through the center and perpendicular to the length of rod will be,
Choices
Choice (4)  Response  

a.  0.0033 kgm ^{2} 

b.  0.033 kgm ^{2} 

c.  0.0025 kgm ^{2} 

d.  0.025 kgm ^{2} 

Question number: 58
» Rotational Motion » Moment of Inertia
Question
Three rods each of length L and mass M are placed along X, Y and Z axis in such a way that one end of each of the rod is at the origin. The moment of inertia of this system about Z axis is,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 59
» Rotational Motion » Moment of Inertia
Question
From a uniform wire, two circular loops are made (i) P of radius r and (ii) Q of radius nr. If the moment of inertia of loop Q about an axis passing through its center and perpendicular to its plane is 27 times that of P about a similar axis, the value of n is (diameter of the wire is very much smaller than r or nr)
Choices
Choice (4)  Response  

a.  4 

b.  6 

c.  2 

d.  3 
