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1. A function n(x) satisfied the differential equation where L is a constant. The boundary conditions are: n(0) = K and n(∞) = 0. The solution to this equation is
(A): n(x) = K exp (-x/L )
(B): n(x) = K exp (-x/L)
(C): n(x) = K exp(x/L)
(D): n(x) = K2 exp (-x/L)
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By: guest on 02 Jun 2017 12.56 am
n(∞) = 0, ∴ B = 0, n(0) = k ∴ B = k.
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