Optical Instruments (id: 4e2717b52)

本题目来源于试卷: Optical Instruments，类别为 IB物理学

[填空题]
What is the focal length of t19 x8r- jr t:hka2ku( 0qypqtthe eyoe37gptvd3a s7fr+q*+ m:) rny r+riqe–lens system when viewing an object
(a) at infinity,    cm
(b) 33 $cm$ from the eye? Assume that the lens–retina distance is 2.0 $cm$.   cm

参考答案:
空格1: 2±2%  空格2: 1.9±2% 


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