Mathematics · Electromagnetic Waves
The electric field in a plane electromagnetic wave is given by E = 200 cos((0.5 × 103 m-1)x - (1.5 × 1011 rad s-1)t) j V m-1. If this wave falls normally on a perfectly reflecting surface, and the radiation pressure exerted by the wave is k109 N m-2, find the value of k. (Take ε0 = 8.85 × 10-12 C2 N-1 m-2)
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