In a single slit diffraction experiment, first minimum for red light 
coincides with first maximum of some other wavelength 
. Calculate 
.
Text Solution
Verified by ExpertsThe correct answer is:
A
Here, 
?
For diffraction minima, 
For first minima of red light, 
For diffraction maxima, a 
for first maxima of 
, a 
;
As the two coincide, therefore, 
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