Safety Convex Mirror Cartoon - 搜索图片

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youtube.com > Kadir Khan Learning
To determine the focal length of a concave mirror by obtaining the image of a distant object
YouTube · Kadir Khan Learning · 36.1万次播放 · 2014年8月25日
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YouTube > Bodhaguru
Science - Plane, Concave and Convex mirrors and Reflection - English
YouTube · Bodhaguru · 8.5万次播放 · 2018年6月16日

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