[問題] 光在真空中傳遞
因為最近才開始接觸光是電磁波的一種 所以有些蠻基本的問題想請教
電子的加速過程中放出電磁波 所以時常可以看到一個動畫 電子上下運動
磁場前後運動 放出的電磁波為向右前進 這就像水波的傳遞法 水分子
只有上下運動 但能量是和介質呈垂直的方式橫過傳播 因此將電磁波
也稱為橫波 那問題是:
1.在真空中應該是沒有任何物質甚至電子的存在 電磁波卻能繼續運動的原因何在?
2.當一顆電子運動加速所產生的"一個"電磁波能量 此電磁波在前進過程中需要有伴隨
著它的電子和磁場振動嗎?
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