本题目来源于试卷: Physics Unit25: Optical Instruments，类别为 国际高中通用物理
[单选题]
A microscope has an objective lens op yzw4 :x 7y)0s.tkilkf focal length 1.4 mm and an v(csgik n07:sqv5h(l eyepiece of focal length 20 mm, adjusted for minimum eyestrain. A b7nv:h (ksqlc5( 0sg vilood 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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