24nishant sir has already xplained it.....................pattern is similar to a wave ......so there will be alternate bright and dark fringes.......
In any interference pattern, we get only dark and light bands. Why are we not getting bands of intermediate brightness? [7]
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8 Answers
62we get all the intermediate shades...
Like in a ripple (in water)
Just like that.. but we say the turf and the crest! (just like dark and light fringe!)
24I think the explaination is somewhat like this:
we view these patterns through naked eye......And so we observe only dark and light bands....Intermediate brightness bands maybe observed through some microscope or something like that ..........
I may be wrong dear...................
11Any explanation of the double slit experiment that i see in any book says that "alternate bright and dark fringes are obtained"
2462It has nothing to do with "single" radiation
see this image... there are shades.. but still we can see dark and bright fringes...
24u may see this also........if u r free.....http://physicsworld.com/cws/article/print/21590
11So is the answer "There are fringes of intermediate brightness but they are not distinguishable to the human eye"?