Mechanical Engineering > GATE 2013 SET-3 > Differential Equations
The solution to the differential equation d2u/dx2 - k(du/dx) = 0 where k is a constant, subjected to the boundary conditions u(0)=0 and u(L)=U, is
A
u = U(x/L)
B
u = U((1-ekx)/(1-ekL))
C
u = U((1-e-kx)/(1-e-kL))
D
u = U((1+ekx)/(1+ekL))

Correct : c

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