Asquare fin with sides of length t=1 cm, overall length l=6 cm, and thermal conductivity k=10 w/m-k is subjected to convection (h=40 w/m2-k, t=20"c) around its surface, including the tip. it is also generating energy (q=2x105 w/m*) uniformly throughout its volume. the fin has a constant base temperature tb=40°c. use the finite difference method with 5 nodes to estimate t(x )plot t(x) from the base (x=0) to the tip (x=l). how would your graph change if q=0 (no internal generation)?