Question: Consider the circular pattern of Haidingers fringes resulting from a film with a thickness of 2 mm and an index of refraction of 1.5. For

Consider the circular pattern of Haidinger’s fringes resulting from a film with a thickness of 2 mm and an index of refraction of 1.5. For monochromatic illumination of λ0 = 600 nm, find the value of m for the central fringe (θt = 0). Will it be bright or dark?

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