In a Young's double slit experiment using red and blue lights of wavelengths 600 nm and 480 nm respectively, the value of 
for which the 
th red fringe coincides with 
th blue fringe is
Text Solution
Verified by ExpertsThe correct answer is:
B
Let 
th red fringe coincides with 
th blue fringe, then
i.e., 4th red fringe coincides with 5th blue fringe. Next 8 th red fringe will coincide with 10 th blue fringe and so on. Thus, 
and 
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