The Intensity of the Waves from a Point Source at a Distance

question 94

Multiple Choice

The intensity of the waves from a point source at a distance d from the source is I. What is the intensity at a distance 2d from the source?

• A) 4I
• B) 2I
• C) I/2
• D) I/4
• E) I/ \(\sqrt { 2 }\)

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