5 33 A double slit interference pattern is produced on a screen as shown in the figure using monochromatic light of wavelength 500 nm Point P is the location of the central bright fringe that is produced when light waves arrive in phase without any path difference A choice of three strips A B and C of transparent materials with different thicknesses and refractive indices is available as shown in the table These are placed over one or both of the slits singularly or in conjunction causing the interference pattern to be shifted across the screen from the original pattern In the column I how the strips have been placed is mentioned whereas in the column II order of the fringe at point P on the screen that will be producee due to the placement of the strip s is shown Correctly match both the column Slit 1 Sint 11 Column I P Screen Film Thickness in um Refractive Index A Only strip B is placed over slit 1 B Strip A is placed over slit I and strip C is placed over slit II C Strip A is placed over the slit I and strip B and strip C are placed over the slit II in conjunction D Strip A and strip C are placed over slit 1 in conjuction and strip B is placed over slit II A 5 1 5 Column II B 1 5 2 5 p First Bright q Fourth Dark r Fifth Dark s Central Bright C 0 25 2