题目内容
(请给出正确答案)
[主观题]
关于焦度的说法,以下不正确的是: Which of the following is not true about the power of focus?
A.常用焦距 f 的倒数表示透镜的折射本领,称为焦度。 The reciprocal of the focal length f is often used to represent the refractive power of the lens, which is called the power of focus.#B.当焦距为f =1米时,则其焦度为1 屈光度。 When the focal length is f = 1 m, the power is 1 diopter.#C.在配戴眼镜时,焦度又常用度做单位,1屈光度等于100度。 When wearing glasses, the focal power is often used as a unit, 1 diopter is equal to 100 degrees.#D.焦度是指聚焦的程度,焦距越大,焦度也越大。 The focus refers to the degr
答案
D
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