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What will be the acceleration due to gravity at height h if h >> R. Where R is radius of earth and g is acceleration due to gravity on the surface of earth

(a)   g/(1 + h/R  )2                     (b)  g ( 1 – 2h/R )

(c)     g/( 1- h/R )2                      (d)  g ( 1- h/R )

Answer:  a

(6)

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