In YDSE fringes are obtainedusinglight of wavelength 4800 A^(0).One slitis covered with a thinglass filmof refractive index1.4 and anotherslit iscoveredby a filmof samethickness but refractive index 1.7.By doing so the centrafringeis shiftedto fifth bright in the original pattern. Thethickness of glassfilm isx xx 10^(-3) mm, what is the value of x ?

In YDSE fringes are obtainedusinglight of wavelength 4800 A^(0).One sl

1.	In YDSE fringes are obtainedusinglight of wavelength 4800 A^(0).One slitis covered with a thinglass filmof refractive index1.4 and anotherslit iscoveredby a filmof samethickness but refractive index 1.7.By doing so the centrafringeis shiftedto fifth bright in the original pattern. Thethickness of glassfilm isx xx 10^(-3) mm, what is the value of x ?
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