Two independent monochromatic sources are said to be incoherent because the detector of light intensity requires time to detect intensity at a given p

Two independent monochromatic sources are said to be incoherent because the detector of light intensity requires time to detect intensity at a given position, that is:

a) much greater than 10-8 sec
b) nearly equal to 10-8 sec
c) much less than 10-8 sec
d) none of the above
 
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