Q62. let f(x,1) be a solution of the wave equation in 1-dimension. if at t0,f (x,0)=eand x,0)=0 1for all x, then f(x,1) for all future times r>0 is described by

Q62. Let f(x,1) be a solution of the wave equation in 1-dimension. If at t0,f (x,0)=eand x,0)=0 1for all x, then f(x,1) for all future times r>0 is described by (a) e ) (b) e- x-) +) ()