📝 Multiple Choice Question
General-science
According to the principle of superposition, the resultant amplitude of two interfering waves is maximum when phase difference is:
A
pi
B
pi/2
C
zero or even multiple of pi
D
odd multiple of pi
Explanation
Constructive interference (maximum amplitude) occurs when waves are perfectly in phase, represented by phase differences of 0, 2π, 4π, etc.
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