The maximum intensity of fringes in Young's experiment is I . If one of the slit is closed, then the intensity at that place becomes I o . Which of the following relation is true ?
Text Solution
Verified by ExpertsThe correct answer is:
C
Suppose slit width’s are equal, so they produces waves of equal intensity say 
Resultant intensity at any point 
where 
is the phase difference between the waves at the point of observation.
For maximum intensity 
…(i)
If one of slit is closed, Resultant intensity at the same point will be 
only i.e. 
…(ii)
Comparing equation (i) and (ii) we get
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