NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics: Questions 2015  2019 of 2142
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Question number: 2015
» Rotational Motion » Concepts of Rotational Motion
Question
A solid sphere, disc and solid cylinder all of the same mass and made up of same material are allowed to roll down (from rest) on an inclined plane, then
Choices
Choice (4)  Response  

a.  Solid sphere reaches the bottom late 

b.  Disc will reach the bottom first 

c.  All of team reach the bottom at the same time 

d.  Solid sphere reaches the bottom first 

Question number: 2016
» Rotational Motion » Values of Moments of Inertia
Question
A long rod has a mass of 5 kg and length 2 m. 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.  0.01 kgm ^{2} 

b.  1.66 kgm ^{2} 

c.  0.008 kgm ^{2} 

d.  0.001 kgm ^{2} 

Question number: 2017
» Rotational Motion » Conservation of Angular Momentum
Question
A cord is wound round the circumference of wheel of radius r. The axis of the wheel is horizontal and moment of inertia about it is I. A weight mg is attached to the end of the cord and falls from the rest. After falling through a distance h the angular velocity of the wheel will be
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 2018
» Rotational Motion » Radius of Gyration
Question
The radius of gyration of a disc of mass 200 g and radius 3.2 cm, about an axis passing through its center of gravity and perpendicular to the plane is
Choices
Choice (4)  Response  

a.  2.54 cm 

b.  1.06 cm 

c.  0.54 cm 

d.  2.26 cm 

Question number: 2019
» Rotational Motion » Rigid Body Rotation Equations of Rotational Motion
Question
A wheel has a speed of 1200 revolutions per minute and is made to slow down at a rate of 4 rad /s ^{2}. The number of revolutions is makes before coming to rest is,
Choices
Choice (4)  Response  

a.  272 

b.  314 

c.  143 

d.  722 
