NEET2019Physics-Gravitation
NEET 2019 Physics Variation of g with Depth MCQ Question
Type: MCQ-conceptual-Medium-Class 11
A body weighs 200 N on the surface of the earth. How much will it weigh half way down to the centre of the earth?
A
250 N
B
100 N
C
150 N
D
200 N
Correct Answer
Option B
Detailed Explanation
Weight inside the Earth is given by W' = W(¹⁻ d/R), where d is the depth and R is the Earth's radius. At half the radius, W' = 200(1 - 0.5) = 100 N.
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