I appreciate Carl Mungan’s careful reading of my article; however, I don’t come to the same conclusions as he does. Though he mentions in my third and fourth example that both are described by wave equations, the conclusion that both result in the same transfer function of energy through a boundary is not obvious, since one is for a classical wave, second order in time, and the other is a quantum wave equation, first order in time! Mungan further argues that the analogy with the impedance matching is imperfect, indicating that a transfer function of s /(1+s) is more appropriate. His argument is unphysical, however, because s → ∞ implies either R → ∞ or r → 0, neither of which serves to be as good an analogy with the other three examples as does the r = R case for load-matching, in my view.
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LETTERS TO THE EDITOR| February 01 2018
Subodha Mishra; Mishra’s response. Phys. Teach. 1 February 2018; 56 (2): 69. https://doi.org/10.1119/1.5021428
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