本题目来源于试卷: Physics Unit23: Light and Geometric Optics，类别为 国际高中通用物理
[单选题]
Two diverging lenses are similar except,nh*fc5 0rd(, kpqgbr that94jykzl+ sc(n lens B is rated at 20 diopters, whereas lens zyknc(sl+ 4j9 A is rated at 10 diopters. The focal length of lens B is
A. one-fourth of the focal length of lens A.
B. one-half of the focal length of lens A.
C. twice the focal length of lens A.
D. four times the focal length of lens A.
参考答案: B
本题详细解析:
暂无
| 
