Geekiyanage, P. Physics Oscillations & Waves Light - Part 4 (New Syllabus) - Panadura Author 2022 - iv,156 p. Illustration - Unit - 3 . ISBN: 9789555449151 Subjects--Topical Terms: PHYSICSGEOMETRICAL OPTICSREFRACTIONLENSESHUMAN EYEVISIONPRISMSTELESCOPE Dewey Class. No.: B3055 / LDC