Determine what happens to the double slits interference pattern if one of the slits is covered with a thin, transparent film whose thickness is `lambda/(2(mu-1))`, where `lambda` is the wavelength of the incident light and mu is the index of refraction of the film.

In a Young's double slit experiment, one of the slits is covered by a thin film of thickness t=0.04 mm, and refractive index mu=1.2+(9xx10^(-14)m^(2))/(lambda^(2)) , where lambda is the wavelength in meter. A beam of light consisting of two wavelength lambda_(1)=400nm and lambda_(2)=600 nm falls normally on the plane of the slits. Find the distance between two central maxima in milimeter. Distance of screen from slits is 400 times the the separation between the slits.

Monochromatic ligth of wavelgth 6,000 overset @A is used in a Young's double slit experiment.One of the slits is covered by a transparent film of thickness 1.2 xx 10^(-5) m having refractive index 1.4.How many fringes will shift due to the introduction of the film?

There is a Young's double-slit experiment set-up completely dipped in water. Assume that the refractive index of water is mu_1 . One of the slits is covered with a thin film of thickness t and refractive index mu_2 . What will be the optical path difference at the centre of screen ?

For observing interference in thin films with a light of wave length lambda the thickness of the film :

Figure shows a YDSE setup having identical slits S_(1) and S_(2) with d =5 mm and D = 1 m. A monochromatic light of wavelength lamda = 6000 Å is incident on the plane of slit due to which at screen centre O, an intensity I_(0) is produced with fringe pattern on both sides Now a thin transparent film of 11 mu m thickness and refractive index mu = 2.1 is placed in front of slit S_(1) and now interference patten is observed again on screen. After placing the film of slit S_(1) , the intensity at point O screen is :

Figure shows a YDSE setup having identical slits S_(1) and S_(2) with d =5 mm and D = 1 m. A monochromatic light of wavelength lamda = 6000 Å is incident on the plane of slit due to which at screen centre O, an intensity I_(0) is produced with fringe pattern on both sides Now a thin transparent film of 11 mu m thickness and refractive index mu = 2.1 is placed in front of slit S_(1) and now interference patten is observed again on screen. After placing the film of slit S_(1) , the intensity at point O screen is :

Figure shows a YDSE setup having identical slits S_(1) and S_(2) with d =5 mm and D = 1 m. A monochromatic light of wavelength lamda = 6000 Å is incident on the plane of slit due to which at screen centre O, an intensity I_(0) is produced with fringe pattern on both sides Now a thin transparent film of 11 mu m thickness and refractive index mu = 2.1 is placed in front of slit S_(1) and now interference patten is observed again on screen. After placing the film of slit S_(1) , the intensity at point O screen is :

When a transparent film of refractive index 1.5 is kept over one of the openings of a double slit experiment apparatus, the interference pattern is shifted through six successive maxima, towards the side, where the film was placed. What is the thickness of the film if the wavelength of light used in 6000 Å?

The slits in a double-slit interference experiment are illuminated by orange light (lambda = 60 nm) . A thin transparent plastic of thickness t is placed in front of one of the slits. The nunber of fringes shifting on screen is plotted versus the refractive index mu of the plastic in graph shown in figure. The value of t is

The slits in a double-slit interference experiment are illuminated by orange light (lambda = 60 nm) . A thin transparent plastic of thickness t is placed in front of one of the slits. The nunber of fringes shifting on screen is plotted versus the refractive index mu of the plastic in graph shown in figure. The value of t is