NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics: Questions 2010  2014 of 2142
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Passage
Read the passage given below and answer the questions that follows:
The orbit of Pluto is much more eccentric than the orbits of the other planets. That is, instead of being nearly circular, the orbit is noticeably elliptical. The point in the orbit nearest to the sun is called the perihelion and the point farthest from the sun is called the aphelion.
Question number: 2010 (3 of 3 Based on Passage) Show Passage
» Gravitation » Gravitational Potential
Question
As Pluto moves from the perihelion to the aphelion, the work done by gravitational pull of Sun on Pluto is
Choices
Choice (4)  Response  

a.  zero 

b.  Depends on sense of rotation 

c.  positive 

d.  negative 

Question number: 2011
» Rotational Motion » Moment of Inertia
Question
Two discs of same thickness but of different radii are made of two different materials such that their masses are same. The materials are of densities ρ _{1} and ρ _{2}. The ratio of the moments of inertia of these discs about the respective axes passing through their centers and perpendicular to their planes will be in,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 2012
» Gravitation » Gravitational Potential
Question
Two bodies of mass 10 ^{2} kg and 10 ^{3} kg are lying l m apart the gravitational potential at the midpoint of the line joining them is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 2013
» Rotational Motion » Moment of Inertia
Question
From a disc of radius R, a concentric circular portion of radius r is cut out so as to leave an annular disc of mass M. The moment of inertia of this annular disc about the axis perpendicular to its plane and passing through its center of gravity is,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 2014
» Rotational Motion » Moment of Inertia
Question
One circular ring and one circular disc, both are having the same mass and radius. The ratio of their moments of inertia about the axes passing through their centers and perpendicular to their planes, will be
Choices
Choice (4)  Response  

a.  1: 1 

b.  1: 2 

c.  2: 1 

d.  4: 1 
