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Question
A light wave with an electric field amplitude of E0and a phase constant of zero is to be combined with one of the following waves. Which of these combinations produces the greatest intensity?
A) wave A has an amplitude of E0and a phase constant of zero
B) wave B has an amplitude of E0and a phase constant of 
C) wave C has an amplitude of 2E0and a phase constant of zero
D) wave D has an amplitude of 2E0and a phase constant of
E) wave E has an amplitude of 3E0and a phase constant of
Answer
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