JEE Mains 27-July-2022 Shift 2 Solved Paper

A body of mass m is projected with velocity λve in vertically upward direction from the surface of the earth into space. It is given that ve is escape velocity and λ<1. If air resistance is considered to be negligible, then the maximum height from the centre of earth, to which the body can go, will be :
( R : radius of earth)