Two Light Sources Individually Provide Intensity I_o at a Point

question 75

Multiple Choice

Two light sources individually provide intensity I_o at a point. If the sources are operated at the same time and are coherent but out of phase 30°, what is the intensity at that point?

• A)3.7 I_o
• B)2.0 I_o
• C)3.0 I_o
• D)2.8 I_o
• E)1.0 I_o

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