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JEE PHYSICS MCQ: GRAVITATION

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Application +4 | -1

At a point above the surface of the earth, the gravitational potential is

-5.12 \times 10^7 \mathrm{~J} \mathrm{~kg}^{-1}

and the acceleration due to gravity is

6.4 \mathrm{~ms}^{-2}

. Assuming the mean radius of the earth to be

6400 \mathrm{~km}

, calculate the height of this point above the earth's surface.

View answer and explanation

Correct option: A

1600 \mathrm{~km}

Option A (1600 km) is correct because it is the height calculated by using the gravitational potential and acceleration due to gravity.

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