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在菲湟耳圆屏衍射的几何阴影中心处( )

A、永远是个亮点,其强度只与入射光强有关

B、永远是个亮点,其强度随着圆屏的大小而变

C、有时是亮点,有时是暗点

时间：2021-09-02 13:28 关键词：文鼎教育乐山师范学院光学

答案解析

B

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