Optical Instruments (id: 1b59d9183)

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

[填空题]
An achromatic lens is made of two very thin lenses, placedf o)h( wrtzz74jq6,ky in contact, that havdl . z1nx5xf0 /zx;xefe focal lengt1/5xn lx.; dzx0ffe xzhs of $f_1=-28\mathrm{~cm}$ and $f_2=+23\mathrm{~$cm$}.$
(a) Is the combination converging or diverging?  ----待选择----convergingdiverging 
(b) What is the net focal length?    m

参考答案:
空格1: converging  空格2: 1.3±2% 


本题详细解析:

微信扫一扫，分享更方便