Ghatak, Ajoy Optics - 8th - India MGH 2025 - xxii;556p.,1.4 ISBN: 9789355328595 Subjects--Topical Terms: --Refraction and Reflection by Spherical Surfaces Chapter --The Matrix Method in Paraxial Optics--Fermat’s Principle and its Applications Chapter Dewey Class. No.: 535 GHA-O