In Fresnel's biprism experiment a mica s...

In Fresnel's biprism experiment a mica sheet of refractive index 1.5 and thickness `6xx10^(-6)m` is palced in the path of one of interfering beams as a result of which the central fringe gets shifted through five fringe widths. Then calculate the wavelength of light.

6000 Å

8000 Å

4000 Å

2000 Å

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