In YSDE, both slits are covered by transparent slab. Upper slit is covered by slab of R.I. 1.5 and thickness t and lower is
covered by R.I. `4/ 3` and thickness 2t, then central maxima
`

In a double slit experiment a parallel beam of light strikes the slit plane at an angle theta as shown in the figure. The two slits are covered with transparent plastic sheets of equal thickness t but of different refractive indices 1.2 and 1.5. The central maxima is formed at the centre of the screen at C. (a) Which sheet was used to cover the slit S1? (b) Find theta .

A Young's double slit apparatus is immersed in a liquid of refractive index mu_(1). The slit plame touches the liquid surface. A parallel beam of monochromatic light of wavelength lambda (in air) is incident normally on the slits. a. Find the fringe width. b. If one of the slits (say S_(2) ) is covered by a transparent slab of refrative index mu_(2) and thickless t as shown, find the new position of central maxima. c. Now, the other slit, S_(1) is also covered by a slab of same thickness and refractive index mu_(3) as shown in Fig. 2.49 due to which the central maxima recovers it positon, find the value of mu_(3) Find the ratio of intensities at O in the three conditions (a), (b), and (c).

A Young's double slit apparatus is immersed in a liquid of refractive index mu_(1). The slit plame touches the liquid surface. A parallel beam of monochromatic light of wavelength lambda (in air) is incident normally on the slits. a. Find the fringe width. b. If one of the slits (say S_(2) ) is covered by a transparent slab of refrative index mu_(2) and thickless t as shown, find the new position of central maxima. c. Now, the other slit, S_(1) is also covered by a slab of same thickness and refractive index mu_(3) as shown in Fig. 2.49 due to which the central maxima recovers it positon, find the value of mu_(3) Find the ratio of intensities at O in the three conditions (a), (b), and (c).

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

A light of wavelength 6000 Å shines on two narrow slits separeted by a distance 1.0 mm and illuminates a screen at a distance 1.5 m away. When one slit is covered by a thin glass plate of refractive index 1.8 and other slit by a thin glass plate of refractive index mu , the central maxima shifts by 0.1 rad. Both plates have the same thickness of 0.5 mm. The value of refractive index mu of the glass is

A light of wavelength 6000 Å shines on two narrow slits separeted by a distance 1.0 mm and illuminates a screen at a distance 1.5 m away. When one slit is covered by a thin glass plate of refractive index 1.8 and other slit by a thin glass plate of refractive index mu , the central maxima shifts by 0.1 rad. Both plates have the same thickness of 0.5 mm. The value of refractive index mu of the glass is

In the Young's double slit experiment the central maxima is observed to be I_(0) . If one of the slits is covered, then intensity at the central maxima will become-

In the Young's double slit experiment the central maxima is observed to be I_(0) . If one of the slits is covered, then intensity at the central maxima will become-

In the YDSE shown the two slits are covered with thin sheets having thickness t & 2t and refractive index 2mu and mu .Find the position (y) of central maxima.

In the YDSE shown the two slits are covered with thin sheets having thickness t & 2t and refractive index 2mu and mu .Find the position (y) of central maxima.