The change in the value of g at a height h above the surface of the earth is the same as at a depth d below the surface of earth. When both d and i are much smaller than the radius of the earth, then which of the following is correct ?

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d=h2

d=3h2

d = 2h

d = h

answer is C.

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Detailed Solution

We know that, gh=g1−2hR……………….(1)and gd=g1−dR…………………………….(2)∴ g1−2hR=g1−dR or 2h=d

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