อัปโหลดแล้ว 6 ปี ก่อนหน้านี้
Innovative study modules for the concepts like Light, Spherical Mirrors, are readily available on the Extramarks app and website. With new topics being introduced every day and the various formulas and scientific facts to remember, students often get stuck. Extramarks come handy with fun and interactive study materials, notes and additional resources, to help students excel academically, and grasp each concept better, from start to finish.https://www.extramarks.com/study-material/icse-class-9/physics-light-spherical-mirrors
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