You conduct a double-slit experiment and see the typical interference pattern in
ID: 1478792 • Letter: Y
Question
You conduct a double-slit experiment and see the typical interference pattern including a bright central fringe. What will happen to this central fringe if you place a glass block (n = 1.5) in the path of one (and only one) of the beams?
The central bright fringe will become something in between bright and dark.
The central bright fringe will become dark.
It depends on the size of the glass block.
The central bright fringe will remain bright.
The central bright fringe will become something in between bright and dark.
The central bright fringe will become dark.
It depends on the size of the glass block.
The central bright fringe will remain bright.
Explanation / Answer
I dont think brightness of central fringe will change
Only its position will change.
Since we have added some path difference on 1 slit, the central fringe will not be formed at exact centre but at some other point but its brightness will be same
Answer:
The central bright fringe will remain bright.
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