GravitationGravitational Acceleration (NEET (NTANational Eligibility cum Medical Entrance Test) Physics): Questions 1  4 of 20
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Question number: 1
» Gravitation » Gravitational Acceleration
Question
Two planets of radii in the ratio 2: 3 are made from the materials of density in the ratio 3: 2. Then the ratio of acceleration due to gravity at the surface of two planets will be,
Choices
Choice (4)  Response  

a.  1 

b.  0.12 

c. 


d.  2.25 

Question number: 2
» Gravitation » Gravitational Acceleration
Question
At what height above the surface of the earth is the acceleration due to gravity 6 % of its value at the surface? (Take R to be earth radius)
Choices
Choice (4)  Response  

a.  4R 

b.  R 

c.  8R 

d. 


Question number: 3
» Gravitation » Gravitational Acceleration
Question
Select the wrong statements from the following
(1) The orbital velocity of a satellite increases with the radius of the orbit
(2) Escape velocity of a particle from the surface of the earth depends on the speed with which it is fired
(3) The time period of a satellite does not depend on the radius of the orbit
(4) The orbital velocity is inversely proportional to the square root of the radius of the orbit
Select the correct answers with mark it according to the following codes:
Choices
Choice (4)  Response  

a.  1 and 2 are correct 

b.  1.2 and 3 are correct 

c.  1 and 3 are correct 

d.  1 and 4 are correct 

Question number: 4
» Gravitation » Gravitational Acceleration
Question
The potential energy of gravitational interaction of a point mass m and a thin uniform rod of mass M and length l, if they are located along a straight line at a distance a from each other is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

