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 length of 10 cm. A person has a near po5hfu: y9wptq0int ofrkkf1/a,s llg2j0kjryov ( 2f )*slg2 25 cm. What is the magnification of the lens for that person when their eyes are focused at i(/2ry f akfk01g,lk rsvl) 2j osl2*jgnfinity?
A. 1.5
B. 2.5
C. 3.5
D. 4.5
参考答案: B
本题详细解析:
暂无
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Post time 2024-1-26 22:03:25