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13 April, 23:25

Five pulses are generated every 0.112 s in a tank of water. What is the speed of propagation of the wave if the wavelength of the surface wave is 1.20 cm?

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  1. 13 April, 23:30
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    The answer to the question is

    The wave speed is 53.57 cm/s

    Explanation:

    The speed of a wave is the distance covered by the wave per unit time.

    Wave speed is given by

    v = f*λ

    where v = The velocity of the wave

    f = The wave frequency

    λ = The wavelength of the wave

    the speed v of the wave can also be expressed interms of the period as

    v = λ/T

    The freuency of the given wave is f = 5 / (0.112 s) = 44.64 Hz and the wavelength is λ = 1.20 cm

    Therefore the speed of the wave = 44.64 Hz * 1.20 cm = 53.57 cm/s
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