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The weight of a body at earth's surface ...

The weight of a body at earth's surface is W. At a depth half way to the centre of earth it will weight

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Verified by Experts

The correct Answer is:
2
`Mg+F_(ST)=B`
`mg+4aT=a^(2)hrho_(w)g`

`10+4xx10/4=10h`
`h=2m`
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