本题目来源于试卷: Physics Unit25: Optical Instrument，类别为 Generic Physics
[单选题]
A compound microscope has a 18-cm barrel an (h**onr whmpx9 xgnn z.i4:0ld an objectwptsq ,i14jr x(.jz.+ b+u hohive with a focal length of 8.0 mm. What is the focal length of the eyepiece to gi++ p.jsj,uh1 thowx rz.(b4qive a total magnification of 240?
A. $0.13 \; cm$
B. $1.5 \; cm$
C. $1.9 \; cm$
D. $2.3 \; cm$
参考答案: D
本题详细解析:
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Post time 2024-1-26 22:03:25