凸透镜成像的原理如图所示,
.若物体到焦点
的距离与焦点
到凸透镜的中心线
的距离之比为
,则物体被缩小到原来的( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915e8f7557e3627a09bdc0052cbb5671.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8130800cd955db7b408132a6b80bec1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-04-20 16:59:20
|
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【推荐1】如图,在
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【推荐2】如图,在△ABC中,AB=6,AC=8,BC=10,P为边BC上一动点,PE⊥AB于E,PF⊥AC于F,M为EF中点,则AM的最小值为( )
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