作者ROGER2004070 ()
看板Physics
标题[问题] 量子
时间Sat Oct 6 19:29:34 2007
When a molecular absorbs a photon , both the energy and momentum are conserved.
If a H2 molecular at 300k absorbs an ultraviolet photon of wavelength 100nm ,
what is the change in its velocity △v?
请问这题怎麽解阿? 解好久...
氢分子吸收紫外光的能量使速度变快
这样列式对吗?
1/2 * m * v^2 = E = hc/λ
谢谢!
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