氢原子从量子数n=3的能级跃迁到n=2的能级时,辐射出波长为λ1的光子；
从n=2的能级跃迁到基态时,辐射出波长为λ2的光子.从n=3的能级跃迁到基态时,辐射出的光子的波长为?
人气：282 ℃ 时间：2020-01-27 07:08:06
解答
从n=3级回到基态需要的能量是从3到2 和从2到基态的能量的和
E=hν
而且ν=1/λ
因此
设波长为λ3
h（1/λ1+1/λ2)=h(1/λ3）
因此λ3=λ1λ2/λ1+λ2
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