Q10Short answer
The given graph (Fig.12.2) shows the displacement versus time relation for a disturbance travelling with velocity of 1500 m s–1. Calculate the wavelength of the disturbance. Fig. 12.2
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From the graph Time period, T = 2 × 10-6 s. Frequency, ν = 1/T = 5 × 105 Hz. Wavelength, λ = v/ν = 5 × 105 m.