Young's double slit experiment (Angular fringe width)

In Young's double slit experiment:

In Young's double slit experiment, the fringe width with light of wavelength 6000 Ã… is 3 mm. The fringe width, when the wavelength of light is changed to 4000 Ã… is

In a Young's double slit experiment, the fringe width is found to be 0.4mm . If the whole apparatus is immersed in water of refractive index 4//3 without disturbing the geometrical arrangement, the new fringe width will be

In a Young's double slit experiment, the fringe width is found to be 0.4mm . If the whole apparatus is immersed in water of refractive index 4//3 without disturbing the geometrical arrangement, the new fringe width will be

In a Young's double slit experiment, the fringe width will remain same, if ( D = distance between screen and plane of slits, d = separation between two slits and lambda = wavelength of light used)

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 the fringe width is 0.2mm . If the wavelength of light used is increased by 10% and the separation between the slits if also increased by 10%, the fringe width will be

In Young's double-slit experiment the angular width of a fringe formed on a distant screen is 1^(@) . The wavelength of light used is 6000 Å . What is the spacing between the slits?

In a Young's double slit esperiment, the angular width of a fringe formed on a distant screen is 1^(@) . The slit separation is 0.01 mm. The wavelength of the light is

In a Young's double-slit experment, the fringe width is beta . If the entire arrangement is now placed inside a liquid of refractive index mu , the fringe width will become