Column I shows four situations of standard Young’s double slit arrangement with the screen placed far away from the slits S_(1) and S_(2) . In each of these cases S_(1)P_(0)=S_(2)P_(0), S_(1)P_(1)-S_(2)P_(1)=lambda//4 and S_(1)P_(2)-S_(2)P_(2)=lambda//3, where lambda is the wavelength of the light used. In the cases B,C and D, a transparent sheet of refractive index mu and thickness t is pasted on slit S_(1) . The thicknesses of the sheets are different in different cases. The phase difference between the light waves reaching a point P on the screen from the two slits is denoted by delta (P) and the intensity by I(P). Match each situation given in Column I with the statement(s) in Column II valid for that situation.

Column I shows four situations of standard Young’s double slit arran

1.	Column I shows four situations of standard Young’s double slit arrangement with the screen placed far away from the slits S_(1) and S_(2) . In each of these cases S_(1)P_(0)=S_(2)P_(0), S_(1)P_(1)-S_(2)P_(1)=lambda//4 and S_(1)P_(2)-S_(2)P_(2)=lambda//3, where lambda is the wavelength of the light used. In the cases B,C and D, a transparent sheet of refractive index mu and thickness t is pasted on slit S_(1) . The thicknesses of the sheets are different in different cases. The phase difference between the light waves reaching a point P on the screen from the two slits is denoted by delta (P) and the intensity by I(P). Match each situation given in Column I with the statement(s) in Column II valid for that situation.
Answer» ANSWER :A::B::C::D

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