o plane waves contra-propagate in free space and interfere with each other. They have the same frequency, same amplitude, and same propagations constant. Derive an expression for the time-average Poynting vector of the resulting wave. Please solve the question with this formula => H x E = Poynting vector. Please don't use this formula => (1/μ)E × B = Poynting vector

o plane waves contra-propagate in free space and interfere with each other. They have the same frequency, same amplitude, and same propagations constant. Derive an expression for the time-average Poynting vector of the resulting wave. Please solve the question with this formula => H x E = Poynting vector. Please don't use this formula => (1/μ)E × B = Poynting vector

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Two plane waves contra-propagate in free space and interfere with each other. They have the
same frequency, same amplitude, and same propagations constant.
Derive an expression for the time-average Poynting vector of the resulting wave.

Please solve the question with this formula => H x E = Poynting vector.

Please don't use this formula => (1/μ)E × B = Poynting vector

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