Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Hard-Class 11
If a body weighs 63 N on the surface of the Earth, what would be its weight at a height equal to the Earth's radius?
A
15.75 N
B
31.5 N
C
21 N
D
42 N
Correct Answer
Option A
Detailed Explanation
Using the inverse square law for gravitation, the gravitational force at a distance of 2R from the center of the Earth is one-fourth that at the surface (R), hence the weight becomes 63 N / 4 = 15.75 N.
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