本题目来源于试卷: Photoelectric Effect，类别为 美国物理杯赛(Physics Bowl)
[单选题]
16.45: Light of wavelength 250 nm shines onto a metallic surface8 aeuz;j g:)qt. It is knownm +,or4a2 gaxy that the electrons ejected from 2 m axrgo+4ya,the surface range in speed as 0 ≤ v ≤ 4.85× 105 m/s. What is the work function of the surface?
A. 4.97 eV
B. 1.60 eV
C. 3.63 eV
D. 4.30 eV
E. 1.34 eV
参考答案: D
本题详细解析:
暂无
| 
