本题目来源于试卷: Light: Geometric Optics，类别为 IB物理学
[问答题]
Why, in Example 13, must the convergi8(k aql85 lqd3 +gu ;7ojbao2.prhex lng lohmc( /* qgxi,ens have a shorter focal length than the diverging lens if the latter’s focal lengtq(/ gm, hoi*cxh is to be determined by combining them?
参考答案: If
the converging lens does not have a shorter focal length than the diverging
lens, then the
converging lens’
image (which will be a virtual object for the diverging lens) will be too far
away from the diverging lens and it will just form another virtual image. This situation does us no good in determining
the focal length of the diverging lens, since we can’t measure the distance
from the lens to a virtual image (we can’t project it on to a screen, for
example).
本题详细解析:
暂无
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