Physics Unit23: Light and Geometric Optics (id: 8e71b2453)

本题目来源于试卷: Physics Unit23: Light and Geometric Optics，类别为 通用国际物理

[单选题]
If the radius of curvature of 37f f-gtaxe8b 4flg zssg3;(hthe concave mirror kbq;dm;ub5 tv,:/bw ois r, the focal length is

A. 2r
B. r
C. r/2
D. cannot be determined from the information given


参考答案:  C


本题详细解析: 暂无

微信扫一扫，分享更方便