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Acceleration due to gravity is ‘g’ on the surface of the earth. The value of acceleration due to gravity at a height of 32 km above earth’s surface is (Radius of the earth = 6400 km)

(a)  0.9 g                                   (b)  0.99 g

(c)   0.8 g                                   (d)  1.01 g

Answer: b

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