A Fabry-Perot etalon is fashioned from a single slab of transparent material having a high...

A Fabry-Perot etalon is fashioned from a single slab of transparent material having a high refractive index (n = 4.5) and a thickness of 2 cm. The uncoated surfaces of the slab have a reflectance (r2) of 0.90. If the etalon is used in the vicinity of wavelength 546 nm, determine (a) the highest- order fringe in the interference pattern, (b) the ratio Tmax/Tmin, and (c) the resolving power.

Figure 1