NEET Physics Gravitational Potential Energy MCQ Question
A satellite is moved from a distance of 2R to 4R from the center of the Earth, where R is the Earth's radius. What is the change in gravitational potential energy of the satellite if its mass is m?
-G * M_E * m / (4R)
-G * M_E * m / (8R)
G * M_E * m / (8R)
G * M_E * m / (4R)
Correct Answer
Detailed Explanation
The change in gravitational potential energy is given by the formula U = -G * M_E * m * (1/r2 - 1/r1). Substituting r1 = 2R and r2 = 4R, the change is G * M_E * m / (8R).
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