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電磁輻射

出自維基百科,自由嘅百科全書
電磁輻射

電磁輻射電磁學入面所講嘅一種能量,係喺振盪兼且互相垂直嘅電場磁場嘅結合。電磁輻射喺空間中以電磁波嘅形式郁動,可以有效咁傳遞能量同動量。電磁輻射喺由叫光子量子粒子形成。人可以接收波長喺 400 至 700 nm 之間嘅電磁輻射,因此呢種電磁輻射也叫可見光。研究電磁輻射嘅物理學叫做「電動力學」,係電磁學嘅分支。

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