The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the earth. The escape velocity of a body from this platform is fv_(e), where ve is its escape velocity from the surface of the earth. The value of f is

The earth is assumed to be a sphere of radius R. A platform is arrange

1.	The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the earth. The escape velocity of a body from this platform is fv_(e), where ve is its escape velocity from the surface of the earth. The value of f is
Answer» `SQRT(2)` `1/sqrt(2)` `1/3` `1/2` ANSWER :B