In YDSE, the sources is place symmetrical to the slits. If a transparent slab is placed in front of the upper slit, then

In YDSE, the source placed symmetrically with respect to the slit is now moved parallel to the plane of the slits it is closer to the upper slit, as shown then

In YDSE, both slits produce equal intensities on the screen. A 100% transparent thin film is placed in front of one of the slits. Now, the intensity on the centre becomes 75% of the previous intensity. The wavelength of light is 6000Å and refractive index of glass is 1.5. Thus, minimum thickness of the glass slab is

A double slit experiment is done with monochromatic light of wavelength 6000 Å . Slits are 2 mm apart and fringes are observed on a screen placed 10 cm away from the slits. If a transparent plate of thickness 0.5 mm is placed in front of one of the slit, interference pattern shifts by 5 mm. Then refractive index of transparent plate should be :

Optical Path||YDSE with Transparent Slab

In YDSE, find the thickness of a glass slab (mu=1.5) which should be placed in front of the upper slit S_1 so that the central maximum now lies at a point where 5th bright fringe was lying earlier (before inserting the slab). Wavelength of light used is 5000 Å .

A two slit Young's interference experiment it done with monochromatic light of wavelength 6000 A . The slits are 2 mm apart. The fringes are observed on a screen placed 10 cm away from the slits. Now a transparent plate of thickness 0.5 mm is placed in front of one of the slits and it if found that the interference pattern shifts by 5 mm . The refractive index of the transparent plate is :

In a Young's double slit experimental arrangement shown here, if a mica sheet of thickness t and refractive indec mu is placed in front of the slit S_1 , then the path difference (S_1P-S_2P) is

The slits in a Young's double slit experiemnt have equal width and the source is placed symmetrically with respect to the slits. The Intensty ast the central fringe is I_0 . If one of the slits is closed, the intensit at this point will

A thin transparent sheet is placed in from of a Young's double slit. The fringe width will