If the radius of the earth is 6400km, the depth at which the acceleration due to gravity will be 5% less than the value on the surface of the earth is

If the radius of the earth is 6400km, the depth at which the accelerat

1.	If the radius of the earth is 6400km, the depth at which the acceleration due to gravity will be 5% less than the value on the surface of the earth is
Answer» 320KM 2.0km 480km 500km ANSWER :A