How is the spacing between fringes in a double slit experiment affected if :
(i) the slits separation is increased,
(ii) the colour of light used is changed from red to blue,
(iii) the whole apparatus is submerged in a oil of refractive index 1.2?
Justify your answer in each case.

If the source of light used in a Young's Double slit Experiment is changed from red to blue,then

In Young's double slip experiment ,the width of fringes obtained from a source of light of wavelength 5000 Å is 3.6mm Calculate the frings width if the apparatus is immersed in a liquid of refractive index 1.2.

In Young's double slits experiment, light of wavelength 4000Å is used to produced bright fringes of width 0.6 mm, at a distance of 2m . If the whole apparatus is dipped in a liquid of refractive index 1.5, then the fringe width will be

A Young's double slit experiment is conducted with slit separation 10mm, where the screen is 2m away from the slits. If wavelength of light used is 6000 Å , answer the following If the wavelength is increased by 1000 Å , and the whole apparatus is placed in water of refractive index 4//3 , the new fringe width in mm is

A Young's double slit experiment is conducted with slit separation 10mm, where the screen is 2m away from the slits. If wavelength of light used is 6000 Å , answer the following Fringe width in mm is