Consider the arrangement shown in figure. By some mechanism , the separation between the slits S_(3) slitS_(4)can be changed . The intensity is measured at the point P which is at the common perpendicularbetween of S_(1),S_(2) Whenz = (Dlambda)/(2d) the intensity measured at P is l . Find the intensity when a is equalto 1 (Dlambda)/d 2 . (3dlambda)/(2d) (3) (2Dlambda)/d

Consider the arrangement shown in figure. By some mechanism , the sepa

1.	Consider the arrangement shown in figure. By some mechanism , the separation between the slits S_(3) slitS_(4)can be changed . The intensity is measured at the point P which is at the common perpendicularbetween of S_(1),S_(2) Whenz = (Dlambda)/(2d) the intensity measured at P is l . Find the intensity when a is equalto 1 (Dlambda)/d 2 . (3dlambda)/(2d) (3) (2Dlambda)/d
Answer» O,I,2I I,O,2I 2I,O,I I,2I,3I Answer :A

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