File:Geometric Optics focus.PNG

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Geometric_Optics_focus.PNG (407 × 252 pixels, file size: 10 KB, MIME type: image/png)

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English: In geometric optics the focus is a point. The rays of light parallel to the principal axis, after passing through the lens, pass through the fixed point called focus.
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I, the copyright holder of this work, hereby publish it under the following license:
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current07:04, 10 January 2012Thumbnail for version as of 07:04, 10 January 2012407 × 252 (10 KB)Enkay (talk | contribs){{Information |Description ={{en|1=In geometric optics the focus is a point. The rays of light parallel to the principal axis, after passing through the lens, pass through the fixed point called focus. }} |Source =Own work |Author =[[Us

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