diff --git a/01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/02.geometrical-optics-foundings/01.concept-ray-of-light/topic.en.md b/01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/02.geometrical-optics-foundings/01.concept-ray-of-light/topic.en.md
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--- a/01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/02.geometrical-optics-foundings/01.concept-ray-of-light/topic.en.md
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----
-title: 'The concept of light ray'
----
-
-oetiqpritypeITYPQZEty
\ No newline at end of file