What is the weight (or force of gravity) of a body(mass m) at the centre of earth ?
A
mg
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B
m/g
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C
g
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D
0
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Solution
The correct option is D0 Weight is defined as force acting due to the gravity that is F=m×g.As we all know that g=0 at the centre of the gravity on substituting this we get F=0 that is weight of the body at the centre of the gravity is zero.