本题目来源于试卷: Physics Unit27: Early Quantum Theory and Models of the Atom，类别为 国际高中通用物理
[单选题]
In order for a photon to eject an electron from a mu)a7lg7h voj, etal8 ao/ul08u+e) y ax ywjpct1e,'s surface in the photoelectric1y/ c8e+ule,ayx ot a8wpu)j0 effect, the photon's
A. frequency must be greater than a certain minimum value.
B. speed must be greater than a certain minimum value.
C. wavelength must be greater than a certain minimum value.
D. momentum must be zero.
参考答案: A
本题详细解析:
暂无
| 
