When a mica plate of thickness `0.1` mm is introduced in one of the interfering beams, the central fringe is displaced by a distance equal to 10 fringes. If the wavelength of the light is `6000 Å` , the refractive index of the mica is

When a mica plate of thickness 0.1mm is introduced in one of the interfering beams, the central fringe is displaced by a distance equal to 10 fringes. If the wavelength of the light is 6000 A^(0) , the refractive index of the mica is

I Young.s double slit experiment a mica plate of thickness .t. and refractive .mu. is introduced in one of the interfering beams. Then the central fringe will be displaced through (d= distance between the slits, D= distance between the slits and the screen)

Monochromatic light of wavelength 6000Å was used to set up interference fringes. On the pasth of the interhering waves a mica sheet 12xx10^(-5) cm thick was placed when the central bright fringe was found to be displaced by a distance equal to the width of a bright fringe. what is the refractive index of mica?

A thin glass plate of refractive index 1.5 is introduced in the path of one of the interfering beam. As a result, the central bright fringe moves to a position previously occupied by the fifth bright fringe. If the wavelength of beam is 6.2 xx 10^(-5) cm , calculate the thickness of glass plate.

In a Young.s double slit experiment, the fringes are displaced by a distance x when a glass plate of refractive index 1.5 is introduced in the path of one of the beams. When this plate is replaced by another plate of same thickness, the shift of fringes is (3"/"2)x . The refractive index of second plate is