本题目来源于试卷: Physics Unit27: Early Quantum Theory and Models of the Atom，类别为 通用国际物理
[单选题]
In order for a photon k;x( l,dw1oqs2h 3 r,uljch*dto eject an electron from a metal's sur k+ls2mqx*m;oface in the photoelectric effect, the *km lxsom;+ q2photon'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
| 
