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The acceleration due to gravity decreases by `Deltag_(1)` when a body is taken to a small height `h lt lt R.` The acceleration due to gravity decreases by `Deltag_(2)` when the body is taken to a depth h from the surface off the earth, then (R= Radius of the earth)A. `Deltag_(1)=Deltag_(2)`B. `Deltag_(1)=2Deltag_(2)`C. `Deltag_(2)=2Deltag_(1)`D. `Deltag_(1)=4Deltag_(2)` |
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Answer» Correct Answer - b `g_(h)=g(1-(2h)/(R))` `Deltag_(1)=g-g_(h)=(2hg)/(R)` `g_(d)=g(1-(h)/(R))` `Deltag_(2)=g-d_(d)=(gh)/(R)` `therefore" "Deltag_(2)=2Deltag_(2).` |
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