  In this paper we study Hawking-like radiation in a FRW-Universe using
semi-classical tunnelling approach and the Hamilton-Jacobi method. Radial null
geodesics are used to picture the process as a "tunnelling" of particles from
behind the apparent horizon and Hawking -like temperature has been calculated.
Quantum corrections have been evaluated in the Hamilton-Jacobi Method by
solving Klein-Gordan wave equation and the temperature agrees at the
semiclassical level. Also it is found that Hamilton-Jacobi formalism does not
depend on the choice of the coordinate system. Finally, leading order
corrections to entropy has been calculated.
