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(Solved): 35. (II) If the wedge between the glass plates of Example 34-6 is filled with some transparent ...
35. (II) If the wedge between the glass plates of Example 34-6 ? is filled with some transparent substance other than air-say, water-the pattern shifts because the wavelength of the light changes. In a material where the index of refraction is \( n \), the wavelength is \( \lambda_{n}=\lambda / n \), where \( \lambda \) is the wavelength in vacuum (Eq. 34-1 ?). How many dark bands would there be if the wedge of Example 34-6 ? is filled with water?
Expert Answer
We know that, if the number of dark bands in an interference pattern is m, with light of wavelength ???? is incident at an angle ???? on a plate of refractive index ???? and thickness t, then In the above case, the light is incident fro