本题目来源于试卷: Physics Unit27: Early Quantum Theory and Models of the Atom，类别为 Generic Physics
[单选题]
A photon is a particleo kj 5 c4a/tdh)46igvbm8(p5gdnnqh9 that(b k -u1vvut a)c9f-sb
A. has zero electric charge.
B. has zero electric field associated with it.
C. cannot travel in a vacuum.
D. has a velocity in a vacuum that varies with the photon frequency.
参考答案: A
本题详细解析:
暂无
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Post time 2024-1-22 00:41:22