如图,一束平行于主光轴的光线经凸透镜折射后,其折射光线与一束经过光心O的光线相交于点P,点F为焦点.若
,
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c993e980bbaee702da1a2f15b4192b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ed6ea635c2ebd0d9a371a0b9dbd538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/605f2976297a0deaa1602ef09d6a5afa.png)
A.![]() | B.![]() | C.![]() | D.![]() |
2024·河南洛阳·二模 查看更多[1]
更新时间:2024-05-26 10:15:32
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】下列说法正确的说法有( )个
①同位角相等②由两条射线组成的图形叫做角③同一平面内,过一点由且只有一条直线与已知直线垂直④直线外一点到这条直线的垂线段,叫做这一点到直线的距离⑤相等的角是对顶角⑥两条相交直线所得的四个角相等,则这两条直线一定互相垂直
①同位角相等②由两条射线组成的图形叫做角③同一平面内,过一点由且只有一条直线与已知直线垂直④直线外一点到这条直线的垂线段,叫做这一点到直线的距离⑤相等的角是对顶角⑥两条相交直线所得的四个角相等,则这两条直线一定互相垂直
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】将一块含
角的直角三角尺按照如图所示的方式放置,其中
,点
落在直线
上,点
落在直线
上,
,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/b09466e7-03de-45e7-91d9-7261b2ab0d68.png?resizew=165)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8159c2aa1ad46a37782df7eab71bf4a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3733c321a29a48e30b9584f63f48daf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/b09466e7-03de-45e7-91d9-7261b2ab0d68.png?resizew=165)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】如图,
,E在直线
上,若
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32436704a722d5e568ff5c175bf3c662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da4f63da042e57db1b4562dac4a29db7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d63783f365e666ace307cadcaba60fa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/16/f535eec8-f24f-4a1c-91d9-b9b8103e1a84.png?resizew=199)
A.60° | B.55° | C.90° | D.95° |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐1】平面直角坐标系内,已知点
,
,
.当
时,若
最大,则t的值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/cd5137f8-e182-4617-81e1-c73836b5a023.png?resizew=154)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fe2c124d5bbbbe666ee145cd454b6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efce89ab12529a44ffce901e16e43383.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/cd5137f8-e182-4617-81e1-c73836b5a023.png?resizew=154)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】如图,AB∥CD,且∠1=15°,∠2=35°+a,∠3=50°- a,∠4=30°- a,∠5=20°.则a的值为( )
![](https://img.xkw.com/dksih/QBM/2017/9/6/1768300768550912/1771291366449152/STEM/262b871a8745496eb0242312f0d3df09.png?resizew=234)
![](https://img.xkw.com/dksih/QBM/2017/9/6/1768300768550912/1771291366449152/STEM/262b871a8745496eb0242312f0d3df09.png?resizew=234)
A.20° | B.25° | C.40° | D.35° |
您最近一年使用:0次