Physics · Electromagnetic Waves
A linearly polarized electromagnetic wave given as E = E0î cos(kz - ωt) is incident normally on a perfectly reflecting infinite wall at z = a. Assuming that the material of the wall is optically inactive, the reflected wave will be given as:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Er = -E0î cos(kz - ωt)
- 2Er = E0î cos(kz + ωt)
- 3Er = -E0î cos(kz + ωt)✓
- 4Er = E0î sin(kz - ωt)
Correct answer
Er = -E0î cos(kz + ωt)
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