AIEEE 2004 | Gravitation Question 179 | Physics

If $$g$$ is the acceleration due to gravity on the earth's surface, the gain in the potential energy of an object of mass $$m$$ raised from the surface of the earth to a height equal to the radius $$R$$ of the earth is

$${1 \over 4}mgR$$

$$2mgR$$

$${1 \over 2}mgR$$

$$mgR$$

AIEEE 2004

MCQ (Single Correct Answer)

-1

The time period of an earth satellite in circular orbit is independent of

both the mass and radius of the orbit

radius of its orbit

the mass of the satellite

neither the mass of the satellite nor the radius of its orbit

AIEEE 2003

MCQ (Single Correct Answer)

-1

The time period of satellite of earth is $$5$$ hours. If the separation between the earth and the satellite is increased to $$4$$ times the previous value, the new time period will become

$$10$$ hours

$$80$$ hours

$$40$$ hours

$$20$$ hours

AIEEE 2003

MCQ (Single Correct Answer)

-1

Two spherical bodies of mass $$M$$ and $$5M$$ & radii $$R$$ & $$2R$$ respectively are released in free space with initial separation between their centers equal to $$12R$$. If they attract each other due to gravitational force only, then the distance covered by the smaller body just before collision is

$$2.5$$ $$R$$

$$4.5$$ $$R$$

$$7.5$$ $$R$$

$$1.5$$ $$R$$

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