Question

# The given graph shows the displacement versus time relation for a disturbance travelling with a velocity of 1500 m s−1. Calculate the wavelength of the disturbance in mm. 3

Solution

## The correct option is A 3From the graph, Time period, T=2×10−6 s Wavelength, λ=Speed (v)Frequency (f)=v×T ⇒λ=1500×2×10−6 ∴λ=3×10−3 m

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