本题目来源于试卷: Physics Unit25: Optical Instrument，类别为 Generic Physics
[单选题]
A microscope has an objective lens of 11:ai xmp((icnx t-g kfocal length 1.4 nxp,/9i8t vmk 2a dbkki-um0iq 9 k/j0mm and an eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A blood sam/8iui0t ab 9,pvj-k0nxk 9d km2/kqimple 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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Post time 2024-1-26 22:03:25