本题目来源于试卷: Physics Unit25: Optical Instruments，类别为 通用国际物理
[单选题]
A microscope has an objective lens of focal length 1.4 mm and an, k5*vof1+cyb yf+zrx eil9 (1s8w+4fc y ndst6j msba/yepiece of focal length 28 s4swfn9jalsc1+6yi dm (/tb0 mm, adjusted for minimum eyestrain. A blood sample is placed 1.5 mm from the objective. How far apart are the lenses?
A. $20 \; mm$
B. $21 \; mm$
C. $23 \; mm$
D. $41 \; mm$
参考答案: D
本题详细解析:
暂无
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