# In the figure shown S_(1)O-S_(2)O=S_(3)O-S_(2)O=(lambda)/(4), Intensity at O due to any one of the slits is I_(0). What is the intensity due to al

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In the figure shown S_(1)O-S_(2)O=S_(3)O-S_(2)O=(lambda)/(4), Intensity at O due to any one of the slits is I_(0). What is the intensity due to all the three coherent sources S_(1), S_(2) and S_(3) ?

A. 3I_(0)
B. I_(0)
C. 5I_(0)
D. 9I_(0)

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