作者winnerken (ken)
看板TransPhys
标题[考古] spectrum
时间Fri May 10 16:45:07 2013
The mercury spectrum has a green line at 546nm,and an ultraviolet
line at 365nm. what is the first order angular separation between
the two spectral lines obtained with a diffraction grating with
10000 rulings/cm ?
不太清楚这题要问甚麽? 是光学的题目 还是近物?
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