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In Young's double slit experiment, a thi...

In Young's double slit experiment, a third slit is made in between the double sits. Then

A

firinges of unewual width are formed

B

contrast between bright and dark fringes is reduced

C

intensity of fringes totally disappeans

D

only bright is observed on the screen

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The correct Answer is:
B
Contrast between the bright and dark fringes will be reduced.
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