How does the wave amplitude along the beam of wavefronts in Figure 17.20 change with distance from
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How does the wave amplitude along the beam of wavefronts in Figure 17.20 change with distance from the row of sources?
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Figure 17.20 A 10A-wide row of 100 coherent sources produces nearly planar wavefronts. The flow of energy is entirely along a beam perpendicular to the row of sources. row of 100 sources beam of nearly planar wavefronts Outside of beam, wave energy is negligible.
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