# One Big problem with Jackson's Classical Electrodynamics

## Homework Statement

You can find the problem in Jackson's Classical Electrodynamics 3rd edition. Chapter 10.19.

I already calculated the transmission coefficients, but mine are fourth of those given by Jackson. I do not know why.

My calculation is based on Problem 10.18. I use dipole moments approximation.

I hope someone can help me correct my error. Thank you very much!

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