Gravitation (NEET (NTANational Eligibility cum Medical Entrance Test) Physics): Questions 48  52 of 84
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Question number: 48
» Gravitation » Universal Law of Gravitation
Question
A mass M splits into two parts m and (M  m), which are then separated by a certain distance. What ratio of maximizes the gravitational force between the parts?
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Question number: 49
» Gravitation » Universal Law of Gravitation
Question
A particle is suspended from a spring and it stretches the spring by 1 cm on the surface of earth. The same particle will stretches the same spring at a place 800 km above earth surface by 
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Question number: 50
» Gravitation » Gravitational Acceleration
Question
At what height above the earth’s surface the acceleration due to gravity will be of its value at the earth’s surface? Radius of earth is 6400 km
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Choice (4)  Response  

a.  25600 km 

b.  2228 km 

c.  12800 km 

d.  2560 km 

Question number: 51
» Gravitation » Universal Law of Gravitation
Question
Three particles of equal mass m are situated at the vertices of an equilateral triangle of side l. What should be the velocity of each particle, so that they move on a circular path without changing l?
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Question number: 52
» Gravitation » Energy
Question
If g is the acceleration due to gravity on the earth’s surface the gain in P. E. of an object of mass m raised from the surface of the earth to a height of the radius R of the earth is 
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