00:01
So the first part of this question is asking us to comment on the relay principle or the relay criteria.
00:09
So according to this criteria, it states that two images are just reversible when the center of diffraction pattern of one of those images is directly over the first minimum diffraction pattern of the other image.
00:25
So we are looking at two images, image one and image two.
00:29
So according to this criterion, we are saying these two images are only resolvable when the center of diffractive pattern of the first image is directly over the minimum first diffraction pattern of the second image.
00:46
So what this means is there is an overlapping of the minimum, which we refer to as the dark fringe of one object and the maximum, which will refer to as the bright fringe of other objects, for us to just.
00:59
Just look at them and say they are just resolved.
01:03
Else if two of those maxima overlap, then we are looking at an instrument that won't be able to identify those objects.
01:12
So if we look at the first minimum of the object, we're looking at an angle theta that is equal to 1 .22 multiplied by lambda divided by d...