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The equation for E is important in the electromagnetic wave theory of light. E=-E k cosr-cosi k cosr+cosi Use the index of refraction, k
The equation for E" is important in the electromagnetic wave theory of light. E"=-E k cosr-cosi k cosr+cosi Use the index of refraction, k = sini, to verify the identity. kcosr-cosi -E |=-E kcos r + cosi sin(i-r) sin(i+r)
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