NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics: Questions 1958  1962 of 2320
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Question number: 1958
» Gravitation » Universal Law of Gravitation
Question
What is the mass of the planet that has a satellite whose time period is T and orbital radius is r?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 1959
» Gravitation » Orbital Velocity of a Satellite
Question
The speed with which the earth have to rotate on its axis so that a person on the equator would weigh the as much as present will be  (Take the equatorial radius as 6400 km. )
Choices
Choice (4)  Response  

a.  5.53 ⨯ 10 ^{4} rad/sec  
b.  3 28 ⨯ 10 ^{3} rad/sec  
c.  9.35 ⨯ 10 ^{4} rad/sec  
d.  7.28 ⨯ 10 ^{3} rad/sec 
Question number: 1960
» Rotational Motion » Values of Moments of Inertia
Question
A long rod has a mass of 0.12 kg and length of 1 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.  0.001 kgm ^{2}  
b.  0.01 kgm ^{2}  
c.  10 kgm ^{2}  
d.  1 kgm ^{2} 
Question number: 1961
» Gravitation » Energy
Question
With what velocity must a body be thrown upward form the surface of the earth so that it reaches a height of 10 R _{e}? Mass of earth M = 6 ⨯ 10 ^{24} kg, radius R _{e} = 6.4 ⨯ 10 ^{6} m and G = 6.67 ⨯ 10 ^{11} Nm ^{2} /kg ^{2}.
Choices
Choice (4)  Response  

a.  10.7 ⨯ 10 ^{3} m/s  
b.  10.7 ⨯ 10 ^{5} m/s  
c.  1.07 ⨯ 10 ^{4} m/s  
d.  10.7 ⨯ 10 ^{4} m/s 
Question number: 1962
» Gravitation » Energy
Question
The masses and the radius of the earth and the moon are M _{1}, M _{2} and R _{1}, R _{2} respectively their centers are at distance d apart. The minimum speed with which a particle of mass m should be projected form a point midway between the two centers so as to escape to infinity will be
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
