Standing 2.5 m in front of a plane mirror with your camera, you decide to take a picture of yourself without turning the
Standing 2.5 m in front of a plane mirror with your camera, you decide to take a picture of yourself without turning the camera around. To what distance should the camera be focused to get a sharp image?
英语人气：266 ℃时间：2020-04-17 18:55:37
优质解答
5m,the distance from the image in the plane mirror to the mirror equal the distance from you to the mirror.
我来回答
类似推荐
- Why are you standing in front of the mirror with your eyes closed
- Why are you standing in front of the mirror with your eyes_?Aclosing B closed
- You need to practice (say) "th" in front of a mirror.
- our teacher is standing __the blackboard.A.in front of B.in the front of
- The teacher is standing in front of the blackboard.有错误码?是不是应该加in the front of...
猜你喜欢
- 14寸多少厘米
- 2圆柱的表面积体积是什么
- 3初二 英语 翻译 请详细解答,谢谢!(2 15:42:25)
- 4定义域为R的函数f（x）满足f（x+1）=2f（x），且当x∈（0，1]时，f（x）=x2-x，则当x∈[-2，-1]时，f（x）的最小值为（ ） A.-116 B.-18 C.-14 D.0
- 5多项式7x^m+kx^2-(3n+1)x+5是关于x的三次三项式,并且一次项系数为-7,则m+n-k的值为
- 6shop\store\mall\market\department store\grocery store\supermaket这几个词的详解、词义上有什么不同?
- 7计算:sin50°(1+根号3tan10°)=?
- 8当然,社会不同,阶级不同,骨气的具体含义也不同.这一点必须认识清楚.但是,就坚定不移地为当时的进步
- 9我的爸爸600字作文~
- 10一辆汽车每小时耗油12千克,它从甲地到乙地行驶了5分之4小时,从乙地到丙地行驶了3分之2小时.从甲地到丙地共耗油多少千克?