<p><br></p><div><br></div><p>왜 전자기파의 파장이 길면 금속사이의 틈을 통과하기 어려운가요?</p><p>파장이 길면 회절이 잘 일어나서 오히려 더 잘 통과해야하는거 아닌가요? </p><p><br></p><p>수업시간에도 선생님이 설명을 제대로 못하시고 넘어가셔서.. ㅠㅠ</p>
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