In YDSE, the source placed symmetrically with respect to the slit is now moved parallel to the plane of the slits it is closer to the upper slit, as shown then

The slits in a Young's double slit experiemnt have equal width and the source is placed symmetrically with respect to the slits. The Intensty ast the central fringe is I_0 . If one of the slits is closed, the intensit at this point will

The slits in a Young's double slit experiment have equal width and the source is placed symmetrically with respect to the slits. The Intensity at the central fringe is I_0 . If one of the slits is closed, the intensity at this point will be

The slits in a Young's double slit experiment have equal width and the source is placed symmetrically with respect to the slits. The Intensity at the central fringe is I_0 . If one of the slits is closed, the intensity at this point will be

In YDSE, the sources is place symmetrical to the slits. If a transparent slab is placed in front of the upper slit, then

In YDSE, the sources is place symmetrical to the slits. If a transparent slab is placed in front of the upper slit, then

In a young’s double slit experiment the distance between slits S1 and S2 is d and distance of slit plane from the screen is D (gtgt d) . The point source of light (S) is placed a distance (d) / (2 ) below the principal axis in the focal plane of the convex lens (L). The slits S1 and S2 are located symmetrically with respect to the principal axis of the lens. Focal length of the lens is f (gtgt d) . Find the distance of the central maxima of the fringe pattern from the centre (O) of the screen.

In the arrangement shown, S is a point source of monochromatic light. S1 and S2 are two slits located sym- metrically with respect to the source with separation between them d_(1) . Parallel to this slit plane there are two more slits (S3 and S4) at separation d_(2) . These slits are also symmetrically located with respect to S. A screen is at a distance L_(2) from this slit plane. How does the intensity on the screen change with y and d_(1) ?