Physics Unit25: Optical Instrument (id: 888686c56)

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本题目来源于试卷: Physics Unit25: Optical Instrument，类别为 Generic Physics

[单选题]
A refracting telescope has a magnificatns)u eok ;wh4pf r- c0li,n5-c jvfo5vha3:a 2iog 6;0b wwquzw(n $m$. 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