本题目来源于试卷: Photoelectric Effect，类别为 美国物理杯赛(Physics Bowl)
[单选题]
12.45: A stationary 4w tu(;/ os wblm6*swhp ,7:tc;a s 9g,f)nivtzr (xyxg8 bjg)atom of mass $4.00\times10^{-26}kg$ spontaneously emits a photon of energy 10.0 eV. Which one of the following choices best represents the speed, in units of m/s, of the atom after emitting the photon?
A. $4.00\times\:10^7$
B. $8.94\times\:10^3$
C. $1.33\times\:10^{-1}$
D. $1.58\times\:10^{-4}$
E. $2.50\times\:10^{-8}$
参考答案: C
本题详细解析:
暂无
| 
