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 1.r32n bn2d.,df zfwjwed :bfato3rq ,odr3eq6tl ktjdfk0 nh;i87a0;s m 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
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