Physics Unit27: Early Quantum Theory and Models of the Atom (id: fd7d77de2)

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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 particl7i *:v*noo(ehmur 3eke f-i-g j0:8 vcqa6xrca that

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