In a Young's experimenttje upper slit is covered by a thin glass plate of refractive index. 1.4 while the lower slit is covered with another glass plate, having the same thickness as the first one but having refravtive index 1.7. Interference pattern is observed using light of wavelength 5400Å. It is found that the point P on the sreen where the central where the central maximum (n=0) fell before the glass plates were inserted now has 3/4 the original intensity. It is further observed that what used to be the fifth maximum earlie, lies shown the point P while the sixth minimum lies above P. Calculate the thickness of glass plate. (Absorption of light by a glass may be neglected).

In Young's 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 the same thickness as the first one but having refractive index 1.7 interference pattern is observed using light of wavelength 5400 Å It is found that point P on the screen where the central maximum (n = 0) fell before the glass plates were inserted now has 3//4 the original intensity. It is further observed that what used to be the fourth maximum earlier, lies below point P while the fifth minimum lies above P. Calculate the thickness of glass plate. (Absorption of light by glass plate may be neglected. .

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.

In a Young's 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 the same thickness as the first ont but having refractive index 1.7. Interference pattern is observed using light of wavelength 5400 A. It is found that the point P on the screen where the central maximum fell berore the glass were inserted now has (3//4)^(th) the original intensity. It is further observed that what used to be the 5th maximum earlier, Iies below the point O while the 6th minimum lies above O. The thickness of the glass plate in nxx10^(-7)m. Find the value of n (Absorption of light by glass plate may by neglected)

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

In double slit experiment fringes are obtained using light of wavelength 4800 Å One slit is covered with a thin glass film of refractive index. 1.4 and another slit is covered by a film of same thickness but refractive index 1.7 . By doing so, the central fringe is shifted to fifth bright fringe in the original pattern. The thickness of glass film is

In Young's double slit experiment, one slit is covered with red filter and another slit is covered by green filter, then interference pattern will be

What type of interference pattern will be observed if two light sources of same wavelengths are used in Young's double-slit experiment ?

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