In a Young's double slit experimental set-up, interference fringe pattern has been obtained with sodium light. If the entire experimental set-up were displaced from air and then immersed in clear water, contained in a suitable transparent tank, then the fringe pattern will likely ____________.

In a Young's double slit experimental set-up, interference fringe patt

1.	In a Young's double slit experimental set-up, interference fringe pattern has been obtained with sodium light. If the entire experimental set-up were displaced from air and then immersed in clear water, contained in a suitable transparent tank, then the fringe pattern will likely ____________.
A.	remain unchanged
B.	be enlarged significantly
C.	shrink considerably
D.	disappear completely
Answer» D. disappear completely

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In a Young's double slit experimental set-up, interference fringe pattern has been obtained with sodium light. If the entire experimental set-up were displaced from air and then immersed in clear water, contained in a suitable transparent tank, then the fringe pattern will likely ____________.

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