(08年盐城市摸底考试)(4分)从某金属表面逸出光电子的最大初动

08年盐城市摸底考试)(4分)从某金属表面逸出光电子的最大初动能与入射光的频率的图像如下图所示,则这种金属的截止频率是__________HZ;普朗克常量是____________J/HZ

答案

4.3(±0.1)×1014Hz     ( 6.26.8)×10-34Js

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