The magnitude of potential energy per unit mass of the object at the surface of earth is .E.. Then escape velocity of the object is

The magnitude of potential energy per unit mass of the object at the s

1.	The magnitude of potential energy per unit mass of the object at the surface of earth is .E.. Then escape velocity of the object is
Answer» `SQRT(2E)` `4E^2` `SQRTE` `sqrt(E//2)` ANSWER :A