A) 7
B) 6
C) 5
D) 4
Correct Answer: C
Solution :
The wave 1 and 3 reach out of phase. Hence resultant phase difference between them is\[\pi \]. \[\therefore \] Resultant amplitude of 1 and 3 = \[10-7\]= 3 \[\mu m\] This wave has phase difference of \[\frac{\pi }{2}\] with 4 \[\mu m\] \[\therefore \] Resultant amplitude = \[\sqrt{{{3}^{2}}+{{4}^{2}}}=5\,\,\mu m\]You need to login to perform this action.
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