The height at which the weight of a body becomes $1/16^{th}$, its weight on the surface of earth (radius $R$), is
The height at which the weight of a body becomes $1/16^{th}$, its weight on the surface of earth (radius $R$), is
- A
$3R$
- B
$4R$
- C
$5R$
- D
$15R$
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