Give the formulas for wave number and time period.
(N/A) Wave number $= \bar{v} = \frac{1}{\lambda} \text{ m}^{-1}$ (It is the number of wavelengths per unit length.)
Time period $= T = \frac{1}{v} \text{ s}$ (The time taken by a wave to complete one oscillation or cycle is called the time period $(T)$.)
Time period $= T = \frac{1}{v} \text{ s}$ (The time taken by a wave to complete one oscillation or cycle is called the time period $(T)$.)
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