At what depth below the surface of the earth, is the value of g same as that at a height of 10km from the surface of the earth?

At what depth below the surface of the earth, is the value of g same as that of a height of 5 km ?

At what height from the surface of earth the value of g is same as at a depth of (R )/(4) ?

At what height above the earth's surface, the value of g is same as that at a depth of 100 km ?

At what height above the earth's surface, the value of g is same as that at a depth of 100 km ?

The acceleration due to gravity at a depth d below the surface of the earth is 20% of its value at the surface. What is the value of d if the radius of the earth=6400km ?

At what depth from the surface of the earth, the acceleration due to gravity will be half the value of g on the surface of the earth ?

At what depth from the surface of the earth, the acceleration due to gravity will be half the value of g on the surface of the earth ?