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Plane Mirror

If The mirror...

Question

If The mirror is shifted towards left then how does the fringe pattern on screen change?
(A) fringe width decreases and the region in which interference is formed shifts downward
(B) fringe width decreases and the region in which interference is formed shift upwards
(C) fringe width does not change and the region in which interference is formed shifts upward
(D) fringe width does not change and the region in which interference is formed shifts downward

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Solution

Dear Student ,
If the mirror is shifted towards the left then the fringe width does not change the region in which interference is formed shifted downwards .

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