本题目来源于试卷: Physics Unit25: Optical Instrument,类别为 Generic Physics
[单选题]
A refracting telescoy6.o0 ofcts m3* z3nzafp3s i; *5 ibx2vmrxh-pe has a magnification $m$. If the objective focal length is doubled and the eyepiece focal length is halved, what is the new magnification?
A. $4 \; m$
B. $2 \; m$
C. $m/2$
D. $m/4$
参考答案: A
本题详细解析:
暂无
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