In Fresnel's Biprism experiment, on inserting a thin plate of glass in the path of one of the interfering beames, it is found that the central bright fringe shifts into the position perviously occupied by the 6th bright fringe. If ther wavelength of the light used is 6xx10^(-5)cm and the refractive index of glass plate is 1.5 for the wavelength, calculate thethickness of the plate.

In Fresnel's Biprism experiment, on inserting a thin plate of glass in

1.	In Fresnel's Biprism experiment, on inserting a thin plate of glass in the path of one of the interfering beames, it is found that the central bright fringe shifts into the position perviously occupied by the 6th bright fringe. If ther wavelength of the light used is 6xx10^(-5)cm and the refractive index of glass plate is 1.5 for the wavelength, calculate thethickness of the plate.
Answer» ANSWER :`7.2xx10^(-6)`m

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