本题目来源于试卷: Physics Unit25: Optical Instrument，类别为 Generic Physics
[单选题]
A farsighted person can readm0t,d0r zsoo; )lv q,l a newspaper he.ftv*ji6rt* tld 25 cm from his eyes, if he wears glasses i .r*tt6*tvfj of
+3.33 diopters. What is this person's near point?
A. $4.2 \; cm$
B. $25 \; cm$
C. $31 \; cm$
D. $1.5 \; m$
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