At a distance 320 km above the surface of the earth, the value of acceleration due to gravity will be lower than its value on the surface of the earth by nearly (radius of earth = 6400 km )

Question

At a distance 320 km above the surface of the earth, the value of acceleration due to gravity will be lower than its value on the surface of the earth by nearly (radius of earth = 6400 km ), 2 %, 6 %, 10 %, 14 %

MARKS App · Accepted Answer

g ′ g = 1 - 2 h R = 1 - 2 × 320 6400 = 1 - 1 10 = 9 10 ∴ % decrease in g = g - g ′ g × 100 = 1 100 × 100 = 10 %

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