本题目来源于试卷: Physics Unit25: Optical Instrument，类别为 Generic Physics
[单选题]
A magnifying lens has a focal lenzrxaac:i5u00 gth of 10mrfht4ks/zxw* -/aj4 cm. A person has a near point of 25 cm. What is the magnification of the lens for that person when their eyjmz/af 4* xrk/w4t- hses are focused at their near point?
A. 1.5
B. 2.5
C. 3.5
D. 4.5
参考答案: C
本题详细解析:
暂无
| 
Post time 2024-1-26 22:03:25