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 c -x kd; ns(y wid/isou-afm8 u*)v7))vblw .jto ejec 3)ts7d (s*0yrllbofet an electron from a metal's surface in the photoelectric effect, tl3 de*sf(yr0o7 lst) bhe 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
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