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1 The height 'h' at which the wei ght of a body will be the same as that at the same depth 'h' from the surface of the earth is (Radius of the earth is R and effect of the rotation of the earth is neglected) :

1. 2 R R 5 
2. 2 5 R – R
3. 2 R
4. 2 R R 3 

Correct answer: 2 R R 5 

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