NEET (National Eligibility cum Medical Entrance Test) Physics: Questions 1947  1950 of 2142
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Question number: 1947
» 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: 1948
» Rotational Motion » Moment of Inertia
Question
Two spheres each of mass M and radius are connected with a massless rod of length 2R as shown in the figure.
The moment of inertia of the system about an axis passing through the center of one of the spheres and perpendicular to the rod will be
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Choice (4)  Response  

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Question number: 1949
» 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
Choices
Choice (4)  Response  

a.  25600 km 

b.  2228 km 

c.  12800 km 

d.  2560 km 

Question number: 1950
» Rotational Motion » Radius of Gyration
Question
The moment of inertia of a sphere of mass M and radius R _{2 } about an axis passing through its center is MR. The radius of gyration of the sphere about a parallel axis to the above and tangent to the sphere is,
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