Question

If the change in the value of 'g' at a height 'h' above
the surface of the earth is same as at a depth x
below it, then (x and h being much smaller than
the radius of the earth)
(1) x = h
(2) x = 2h
(3) X = =
(4) x = 12​

Answer 1

Answer:

the answer is (1) option

×=h

Answer 2

Answer:

(2)

as g'=g(1-2h/r)

and

g'=g(1-d/r)

so x need to be 2h