作者blueboy (努力做研究)
站内Physics
标题[题目] 光学问题
时间Sun Nov 11 16:17:48 2007
a thin lens of index 1.7 has a focal length of 100mm when immersed in
the water(n=1.33) what will the focal length be in the air?
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1F：推 chungweitw:lens-maker formula 11/11 18:17