Physics Unit27: Early Quantum Theory and Models of the Atom (id: 7dcca41d8)

本题目来源于试卷: Physics Unit27: Early Quantum Theory and Models of the Atom，类别为 国际高中通用物理

[单选题]
At what rate are photons emitted by a 50-Wqu sl:n8oje g)j8m (-c sodium vapor lamp? (0+i fb8nm0lx07xtgy nAssume that the lamp's ligx m ltfynigx80bn+70 0ht is monochromatic and of wavelength $589 \; nm$.)

A. $1.0 \times 10^{20}/$s
B. $1.5 \times 10^{20}/$s
C. $2.0 \times 10^{20}/$s
D. $2.5 \times 10^{20}/$s


参考答案:  B


本题详细解析: 暂无

微信扫一扫，分享更方便