JEE PHYSICS MCQ: GRAVITATION

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To what height the body is to be raised so that acceleration due to gravity on it is 1% of the value on the surface of earth? (Radius of earth is 6400km)

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Correct option: A

12800 km

Option A (12800 km) is correct because the height is calculated by setting the acceleration due to gravity to 1% of its surface value and solving for the height using the formula

g' = g(\frac{R}{R+h})^2

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