Multiple Choice
For a coherent plane wave approaching an obstacle with a rectangular opening, diffraction becomes significant under which of the following circumstances?
A) both dimensions of the rectangular opening are comparable to the wavelength
B) one or more dimensions of the rectangular opening are comparable to the wavelength
C) both dimensions of the rectangular opening are larger than the wavelength
D) only if the opening is circular
Correct Answer:
Verified
Correct Answer:
Verified
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