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標題: 電磁波係咩能量 ? (除左visible light係光能) [打印本頁]

作者: 特厚床    時間: 2009-1-14 15:11     標題: 電磁波係咩能量 ? (除左visible light係光能)

電磁波係咩能量 ? (除左visible light係光能)

係唔係普通光一樣係光能? 還是係其他能量?
作者: 楓~    時間: 2009-1-14 16:16

visible light 都係電磁波, 可統稱為光能或幅射能
作者: 筋仔    時間: 2009-1-16 06:48

Electromagnetic Energy ?? E = hv ??
作者: 露東亞    時間: 2009-1-18 00:16

波可唔可以算係能量我唔知,不過好多波都只係傳送能量,其實光都唔可以算係能量,只不過光既wavelenght可以比人睇到姐.至於gammar wave等有幅射能力既波,係因為有一種ionizing power
作者: 食螺絲    時間: 2009-1-18 10:40

Perhaps you can look at the situation this way: waves are energy-carriers. The energy a wave carries is reflected by the associated frequency (or wavelength, depending on the speed of propagation).

Supplement: the ionizing power of Gamma rays is due to the fact that its energy is high enough to overcome the strong attraction between the electrons and the nucleus of an atom, resulting in the ionization of the atom.




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