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Question : 8
Total: 13
SECTION - B
What happen to the interference pattern when two coherent sources are (a) infinitely close, and
(b) far apart from each other
Solution: 👈: Video Solution
(a) Fringe width is proportional to
So, when convent sources are infinity close to one another the fringe width will be too large. Even a single fringe way occupy the whole screen. Hence no interference pattern will be visible.
(b) Fringe width is proportional to
So, when convent sources are very far apart from each other, the fringe will be so small that they will not be reasonable. Hence, no interference pattern will be visible.
So, when convent sources are infinity close to one another the fringe width will be too large. Even a single fringe way occupy the whole screen. Hence no interference pattern will be visible.
(b) Fringe width is proportional to
So, when convent sources are very far apart from each other, the fringe will be so small that they will not be reasonable. Hence, no interference pattern will be visible.
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