Problem 3:/25 Pointsa) If the period of oscillation of a given wave is 3.4 seconds and the wave is travelling at 12 m/s, what isthe wavelength of the wave?b) What is the frequency of the 4th harmonic of the wave from part (a)?Problem 4:/25 PointsA material has an index of refraction of 1.1 for red light and an index of refraction of 1.2 for blue light.Find the difference in refraction angle between a red light ray and a blue light ray if they both enter thematerial from air (n = 1) at an of 30 degrees.

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Answered: a) If the period of oscillation of a…

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a) If the period of oscillation of a given wave is 3.4 seconds and the wave is travelling at 12 m/s, what the wavelength of the wave? b) What is the frequency of the 4th harmonic of the wave from part (a)?