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

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

In Young's double slit experiment the two slits are illuminated with light of wavelength lambda .The thickness of a film of refractive index 1.4 to be introduced in the path of one of the interfering beams so that the central image shifts by one fringe width is

In Young's double slit experiment the fringe width is 4mm .If the experiment is shifted to water of refractive index 4/3 the fringe width becomes (in mm)

In a young 's double slit experiment, a glass plate of refractive index 1.5 and thickness 5 times 10^-4 cm is kept in the path of one of the light rays. Then

Two glass plates of refractive indices 1.5 and 1.6 are introduced in the paths of the two interfering beams in an interference experiment.If the central fringe is not shifted.The ratio of the thickness of the plates is

In Young's double slit experiment, using monochromatic light, the fringe patternn shifts by a certain distance on the screen, when a transparent sheet of thickness 't' and refractive index mu is introduced in the path of one of the interfering waves. the sheet is then removed and the distance between the screen and the slits is doubled. it is found that the distance between the successive maxima (or minima) now is the samme as the observed fringe shift when the sheet was introduced. what is the wavelength of light used?

In young,s double slit experience monochromatic light, the frings pattern shifts by a certain distance on the screen when a mica sheet of refractive index 1.6 and thickness 1.964 microns is introduced in the path of one of the interfering waves. The mica sheet is then sheet is then removed and the distance between the slits and the screen is doubled. It is found that now the distance between succesive maximum (or minimum) is the same as the observed fringe-shift upon the introduction o fthe mica sheet. Calculate the wavelength of the monochromatic light used in the experiment.

In Young’s double slit experiment, the upper slit is covered by a thin glass plate of refractive index 1.4 while the lower slit is covered by another glass plate having same thickness as the first one but having refractive index 1.7. Interference pattern is observed using light of wavelength 5400overset(@)A . It is found that the point P on the screen where the central maximum fell before the glass plates were inserted, now has 3/ 4 the original intensity. It is also observed that what used to be 5^(th) maximum earlier, lies below the point P while the 6_(th) minimum lies above P. Calculate the thick- ness of glass plates. Absorption of light by glass plate may be neglected.

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

In a Young's double slit experiment using monochromatic light, the fringe pattern shifts by a certain distance on the screen when a mica sheet of refractive index 1.6 and thickness 1.964 microns is introduced in the path of one of the interfering waves. The mica sheet is then removed and the distance between the slits and screen is doubled. It is found that the distance between successive maxima now is the same as observed fringe shift upon the introduced of the mica sheet . Calculate the wavelength of the monochromatic light used in the experiment .