FAQ

What is the Wave Number?
Wave Number is the spatial frequency of a wave, measured in cycles per unit distance or radians per unit distance. Wave Number is usually measured using the 1 per Meter for Wave Number. Note that the value of Wave Number is always negative.
Can the Wave Number be negative?
Yes, the Wave Number, measured in Wave Number can be negative.
What unit is used to measure Wave Number?
Wave Number is usually measured using the 1 per Meter[1/m] for Wave Number. Diopter[1/m], Kayser[1/m] are the few other units in which Wave Number can be measured.
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