题目内容

某同学探究平面镜成像时,将一块玻璃板竖直架在一把直尺的上面,再取两段等长的蜡烛A和B一前一后竖放在直尺上,点燃玻璃板前的蜡烛A,用眼睛进行观察,如图所示。在此实验中:

  (1)直尺的作用是           
  (2)两段等长的蜡烛作用是_______________;
  (3)移去蜡烛B,并在其所在位置上放一光屏,则光屏上     
(4)接收到蜡烛A的烛焰的像(填“能”或“不能”).这说明平面
镜成的是      像。
My parents are very kind and helpful.They cook meals and wash clothes for me every day. At the weekend,they often prepare some of my favorite food.Sometimes they also help rile with my lessons.They are very strict with me.but when I make a mistake,they first listen to me and then have a talk with me instead of just complaining about it.They always try to understand me.I think that is a good way for a child to grow up.With their care,I am living and studying happily.(1)比较像与物到镜面的距离,(2)比较像与物的大小,(3)不能 ,(4)虚解析:
略略
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