005 10.0 points What is the frequency of a typical microwave oven whose wavelength is 0.12 m? Answer in units of MHZ. 006 10.0 points Laser scientists can now generate pulses of light as short as 1fs = 10_15 s. One of the great difficulties in working with such short pulses is that many EM waves of di'erent frequencies must be superposed to create the pulse. Because real optical elements like lenses and prisms are made of real materials for which the index of refraction is wavelength dependent i.e., the material is dispersive, parts of the pulse with different frequencies travel through the optical elements at dif ferent speeds and become separated, so the pulse spreads out. Consider a short laser pulse which is normally incident on a piece of crown glass which is L = 3.11 mm thick. The index of refraction for a wavelength of AB = 452 nm in the blue part of the pulse is as = 1.53, and the index of refraction for a wavelength of AR = 613 nm in the red part of the pulse is HR = 1.51. How much sooner does the red part of the pulse arrive at the end of the piece of glass than the blue part? Answer in units of fs. part 1 of 3 Consider a light ray which enters from air to a liquid, where the index of refraction of the liquid is given by n = 1.5. Consider the following three ratios, where each is defined by the specified quantity in the liquid, X', f', and v', to that in the air, A, f, and c. light | ray n = 1 Air 1.5 Liquid What is the ratio of their wavelengths, part 2 of 3 What is the ratio of their frequencies of oscillations, ? part 3 of 3 What is the ratio of the traveling speeds