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Define wave number and angular wave number and give their S.I. units. |
Answer» Wave number is the number of waves present in a unit distance of medium. (v = 1/ λ) S.I. unit of k is rad m–1. Angular wave number or propagation constant is 2π/λ. It represents phase change per unit path difference and denoted by k = 2π/λ. S.I. unit of k is rad m–1. |
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